Merge pull request #163 from lexelby/lexelby-single-extension

single code entry point

105 files changed, 829 insertions, 808 deletions

diff --git a/Makefile b/Makefile
index fc82757a..250a9c5b 100644
--- a/Makefile
+++ b/Makefile
@@ -1,4 +1,4 @@
-EXTENSIONS:=embroider embroider_params embroider_simulate embroider_print embroider_input embroider_palettes
+EXTENSIONS:=inkstitch
 
 # This gets the branch name or the name of the tag
 VERSION:=$(TRAVIS_BRANCH)
diff --git a/bin/build-dist b/bin/build-dist
index a1fa82d9..4d73313a 100755
--- a/bin/build-dist
+++ b/bin/build-dist
@@ -34,26 +34,23 @@ pyinstaller_args+="-p inkscape-0.92.2/share/extensions "
 # output useful debugging info that helps us trace library dependency issues
 pyinstaller_args+="--log-level DEBUG "
 
-mkdir -p dist/inkstitch/bin
-for extension in "$@"; do
-    if [ "$BUILD" = "windows" ]; then
-        wine c:\\Python\\scripts\\pyinstaller.exe $pyinstaller_args ${extension}.py
-    else
-        # without the LD_LIBRARY_PATH, it seems that pyinstaller can't find all of
-        # wxpython's shared libraries
-        LD_LIBRARY_PATH="${site_packages}/wx" pyinstaller $pyinstaller_args ${extension}.py;
-    fi
-
-	# By default, pyinstaller will treat each of ink/stitch's extensions
-	# separately.  This means it packages a lot of the same shared libraries (like
-	# wxPython) multiple times.  Turns out that we can just copy the contents of
-	# the directories pyinstaller creates into one and it works fine, eliminating
-	# the duplication.  This significantly decreases the size of the inkstitch
-	# tarball/zip.
-	cp -a dist/${extension}/* dist/inkstitch/bin
-	rm -rf dist/${extension}
-
-	# Inkscape doesn't let us run native binaries as extensions(?!).  Instead we
-	# add this stub script which executes the binaries that pyinstaller creates.
-	cp stub.py dist/${extension}.py
-done
+if [ "$BUILD" = "windows" ]; then
+    wine c:\\Python\\scripts\\pyinstaller.exe $pyinstaller_args inkstitch.py
+else
+    # without the LD_LIBRARY_PATH, it seems that pyinstaller can't find all of
+    # wxpython's shared libraries
+    LD_LIBRARY_PATH="${site_packages}/wx" pyinstaller $pyinstaller_args --strip inkstitch.py;
+fi
+
+# pyinstaller put a whole mess of libraries under dist/inkstitch.  We'd like
+# to put some more user-accessible stuff like examples and palettes in
+# folders under inkstitch/ (see ../Makefile) so let's move the pyinstaller
+# stuff into its own dir.
+shopt -s dotglob
+mkdir dist/bin
+mv dist/inkstitch/* dist/bin
+mv dist/bin dist/inkstitch
+
+# Inkscape doesn't let us run native binaries as extensions(?!).  Instead we
+# add this stub script which executes the binary that pyinstaller creates.
+cp stub.py dist/inkstitch.py
diff --git a/bin/gen-input-inx b/bin/gen-input-inx
index 918adfb9..5f21ce84 100755
--- a/bin/gen-input-inx
+++ b/bin/gen-input-inx
@@ -37,7 +37,7 @@ def main():
     for format, description in libembroidery_input_formats():
         inx = template.render(format=format, description=description)
 
-        with open("inx/embroider_input_%s.inx" % format.upper(), 'w') as inx_file:
+        with open("inx/inkstitch_input_%s.inx" % format.upper(), 'w') as inx_file:
             inx_file.write(inx)
 
 
diff --git a/embroider_input.py b/embroider_input.py
deleted file mode 100644
index 04d79d4f..00000000
--- a/embroider_input.py
+++ /dev/null
@@ -1,61 +0,0 @@
-import sys
-import os
-from libembroidery import *
-from inkex import etree
-import inkex
-from inkstitch import PIXELS_PER_MM, INKSCAPE_LABEL, _
-from inkstitch.stitch_plan import StitchPlan
-from inkstitch.svg import render_stitch_plan
-
-
-def pattern_stitches(pattern):
-    stitch_pointer = pattern.stitchList
-    while stitch_pointer:
-        yield stitch_pointer.stitch
-        stitch_pointer = stitch_pointer.next
-
-
-def main(embroidery_file):
-    pattern = embPattern_create()
-    embPattern_read(pattern, embroidery_file)
-    embPattern_flipVertical(pattern)
-
-    stitch_plan = StitchPlan()
-    color_block = None
-    current_color = None
-
-    for stitch in pattern_stitches(pattern):
-        if stitch.color != current_color:
-            thread = embThreadList_getAt(pattern.threadList, stitch.color)
-            color = thread.color
-            color_block = stitch_plan.new_color_block((color.r, color.g, color.b))
-            current_color = stitch.color
-
-        if not stitch.flags & END:
-            color_block.add_stitch(stitch.xx * PIXELS_PER_MM, stitch.yy * PIXELS_PER_MM,
-                                   jump=stitch.flags & JUMP,
-                                   stop=stitch.flags & STOP,
-                                   trim=stitch.flags & TRIM)
-
-    extents = stitch_plan.extents
-    svg = etree.Element("svg", nsmap=inkex.NSS, attrib=
-                        {
-                            "width": str(extents[0] * 2),
-                            "height": str(extents[1] * 2),
-                            "viewBox": "0 0 %s %s" % (extents[0] * 2, extents[1] * 2),
-                        })
-    render_stitch_plan(svg, stitch_plan)
-
-    # rename the Stitch Plan layer so that it doesn't get overwritten by Embroider
-    layer = svg.find(".//*[@id='__inkstitch_stitch_plan__']")
-    layer.set(INKSCAPE_LABEL, os.path.basename(embroidery_file))
-    layer.attrib.pop('id')
-
-    # Shift the design so that its origin is at the center of the canvas
-    # Note: this is NOT the same as centering the design in the canvas!
-    layer.set('transform', 'translate(%s,%s)' % (extents[0], extents[1]))
-
-    print etree.tostring(svg)
-
-if __name__ == '__main__':
-    sys.exit(main(*sys.argv[1:]))
diff --git a/inkstitch.py b/inkstitch.py
new file mode 100644
index 00000000..a9ce829e
--- /dev/null
+++ b/inkstitch.py
@@ -0,0 +1,32 @@
+import sys
+import traceback
+from argparse import ArgumentParser
+from lib.utils import save_stderr, restore_stderr
+from lib import extensions
+
+
+parser = ArgumentParser()
+parser.add_argument("--extension")
+my_args, remaining_args = parser.parse_known_args()
+
+extension_name = my_args.extension
+extension_class = getattr(extensions, extension_name.capitalize())
+extension = extension_class()
+
+exception = None
+
+save_stderr()
+try:
+    extension.affect(args=remaining_args)
+except (SystemExit, KeyboardInterrupt):
+    raise
+except Exception:
+    exception = traceback.format_exc()
+finally:
+    restore_stderr()
+
+if exception:
+    print >> sys.stderr, exception
+    sys.exit(1)
+else:
+    sys.exit(0)
diff --git a/inkstitch/__init__.py b/inkstitch/__init__.py
deleted file mode 100644
index 45eed3a6..00000000
--- a/inkstitch/__init__.py
+++ /dev/null
@@ -1,298 +0,0 @@
-#!/usr/bin/env python
-# http://www.achatina.de/sewing/main/TECHNICL.HTM
-
-import os
-import sys
-import gettext
-from copy import deepcopy
-import math
-import libembroidery
-from inkstitch.utils import cache
-from inkstitch.utils.geometry import Point
-
-import inkex
-import simplepath
-import simplestyle
-import simpletransform
-from bezmisc import bezierlength, beziertatlength, bezierpointatt
-from cspsubdiv import cspsubdiv
-import cubicsuperpath
-from shapely import geometry as shgeo
-
-
-# modern versions of Inkscape use 96 pixels per inch as per the CSS standard
-PIXELS_PER_MM = 96 / 25.4
-
-SVG_PATH_TAG = inkex.addNS('path', 'svg')
-SVG_POLYLINE_TAG = inkex.addNS('polyline', 'svg')
-SVG_DEFS_TAG = inkex.addNS('defs', 'svg')
-SVG_GROUP_TAG = inkex.addNS('g', 'svg')
-INKSCAPE_LABEL = inkex.addNS('label', 'inkscape')
-INKSCAPE_GROUPMODE = inkex.addNS('groupmode', 'inkscape')
-
-EMBROIDERABLE_TAGS = (SVG_PATH_TAG, SVG_POLYLINE_TAG)
-
-dbg = open(os.devnull, "w")
-
-translation = None
-_ = lambda message: message
-
-
-def localize():
-    if getattr(sys, 'frozen', False):
-        # we are in a pyinstaller installation
-        locale_dir = sys._MEIPASS
-    else:
-        locale_dir = os.path.dirname(__file__)
-
-    locale_dir = os.path.join(locale_dir, 'locales')
-
-    global translation, _
-
-    translation = gettext.translation("inkstitch", locale_dir, fallback=True)
-    _ = translation.gettext
-
-localize()
-
-# cribbed from inkscape-silhouette
-def parse_length_with_units( str ):
-
-    '''
-    Parse an SVG value which may or may not have units attached
-    This version is greatly simplified in that it only allows: no units,
-    units of px, mm, and %.  Everything else, it returns None for.
-    There is a more general routine to consider in scour.py if more
-    generality is ever needed.
-    '''
-
-    u = 'px'
-    s = str.strip()
-    if s[-2:] == 'px':
-        s = s[:-2]
-    elif s[-2:] == 'mm':
-        u = 'mm'
-        s = s[:-2]
-    elif s[-2:] == 'pt':
-        u = 'pt'
-        s = s[:-2]
-    elif s[-2:] == 'pc':
-        u = 'pc'
-        s = s[:-2]
-    elif s[-2:] == 'cm':
-        u = 'cm'
-        s = s[:-2]
-    elif s[-2:] == 'in':
-        u = 'in'
-        s = s[:-2]
-    elif s[-1:] == '%':
-        u = '%'
-        s = s[:-1]
-    try:
-        v = float( s )
-    except:
-        raise ValueError(_("parseLengthWithUnits: unknown unit %s") % s)
-
-    return v, u
-
-
-def convert_length(length):
-    value, units = parse_length_with_units(length)
-
-    if not units or units == "px":
-        return value
-
-    if units == 'pt':
-       value /= 72
-       units = 'in'
-
-    if units == 'pc':
-       value /= 6
-       units = 'in'
-
-    if units == 'cm':
-       value *= 10
-       units = 'mm'
-
-    if units == 'mm':
-        value = value / 25.4
-        units = 'in'
-
-    if units == 'in':
-        # modern versions of Inkscape use CSS's 96 pixels per inch.  When you
-        # open an old document, inkscape will add a viewbox for you.
-        return value * 96
-
-    raise ValueError(_("Unknown unit: %s") % units)
-
-
-@cache
-def get_doc_size(svg):
-    doc_width = convert_length(svg.get('width'))
-    doc_height = convert_length(svg.get('height'))
-
-    return doc_width, doc_height
-
-@cache
-def get_viewbox_transform(node):
-    # somewhat cribbed from inkscape-silhouette
-    doc_width, doc_height = get_doc_size(node)
-
-    viewbox = node.get('viewBox').strip().replace(',', ' ').split()
-
-    dx = -float(viewbox[0])
-    dy = -float(viewbox[1])
-    transform = simpletransform.parseTransform("translate(%f, %f)" % (dx, dy))
-
-    try:
-        sx = doc_width / float(viewbox[2])
-        sy = doc_height / float(viewbox[3])
-        scale_transform = simpletransform.parseTransform("scale(%f, %f)" % (sx, sy))
-        transform = simpletransform.composeTransform(transform, scale_transform)
-    except ZeroDivisionError:
-        pass
-
-    return transform
-
-@cache
-def get_stroke_scale(node):
-    doc_width, doc_height = get_doc_size(node)
-    viewbox = node.get('viewBox').strip().replace(',', ' ').split()
-    return  doc_width / float(viewbox[2])
-
-
-class Stitch(Point):
-    def __init__(self, x, y, color=None, jump=False, stop=False, trim=False, no_ties=False):
-        self.x = x
-        self.y = y
-        self.color = color
-        self.jump = jump
-        self.trim = trim
-        self.stop = stop
-        self.no_ties = no_ties
-
-    def __repr__(self):
-        return "Stitch(%s, %s, %s, %s, %s, %s, %s)" % (self.x, self.y, self.color, "JUMP" if self.jump else " ", "TRIM" if self.trim else " ", "STOP" if self.stop else " ", "NO TIES" if self.no_ties else " ")
-
-
-def make_thread(color):
-    thread = libembroidery.EmbThread()
-    thread.color = libembroidery.embColor_make(*color.rgb)
-
-    thread.description = color.name
-    thread.catalogNumber = ""
-
-    return thread
-
-def add_thread(pattern, thread):
-    """Add a thread to a pattern and return the thread's index"""
-
-    libembroidery.embPattern_addThread(pattern, thread)
-
-    return libembroidery.embThreadList_count(pattern.threadList) - 1
-
-def get_flags(stitch):
-    flags = 0
-
-    if stitch.jump:
-        flags |= libembroidery.JUMP
-
-    if stitch.trim:
-        flags |= libembroidery.TRIM
-
-    if stitch.stop:
-        flags |= libembroidery.STOP
-
-    return flags
-
-
-def _string_to_floats(string):
-    floats = string.split(',')
-    return [float(num) for num in floats]
-
-
-def get_origin(svg):
-    # The user can specify the embroidery origin by defining two guides
-    # named "embroidery origin" that intersect.
-
-    namedview = svg.find(inkex.addNS('namedview', 'sodipodi'))
-    all_guides = namedview.findall(inkex.addNS('guide', 'sodipodi'))
-    label_attribute = inkex.addNS('label', 'inkscape')
-    guides = [guide for guide in all_guides
-                    if guide.get(label_attribute, "").startswith("embroidery origin")]
-
-    # document size used below
-    doc_size = list(get_doc_size(svg))
-
-    # convert the size from viewbox-relative to real-world pixels
-    viewbox_transform = get_viewbox_transform(svg)
-    simpletransform.applyTransformToPoint(simpletransform.invertTransform(viewbox_transform), doc_size)
-
-    default = [doc_size[0] / 2.0, doc_size[1] / 2.0]
-    simpletransform.applyTransformToPoint(viewbox_transform, default)
-    default = Point(*default)
-
-    if len(guides) < 2:
-        return default
-
-    # Find out where the guides intersect.  Only pay attention to the first two.
-    guides = guides[:2]
-
-    lines = []
-    for guide in guides:
-        # inkscape's Y axis is reversed from SVG's, and the guide is in inkscape coordinates
-        position = Point(*_string_to_floats(guide.get('position')))
-        position.y = doc_size[1] - position.y
-
-
-        # This one baffles me.  I think inkscape might have gotten the order of
-        # their vector wrong?
-        parts = _string_to_floats(guide.get('orientation'))
-        direction = Point(parts[1], parts[0])
-
-        # We have a theoretically infinite line defined by a point on the line
-        # and a vector direction.  Shapely can only deal in concrete line
-        # segments, so we'll pick points really far in either direction on the
-        # line and call it good enough.
-        lines.append(shgeo.LineString((position + 100000 * direction, position - 100000 * direction)))
-
-    intersection = lines[0].intersection(lines[1])
-
-    if isinstance(intersection, shgeo.Point):
-        origin = [intersection.x, intersection.y]
-        simpletransform.applyTransformToPoint(viewbox_transform, origin)
-        return Point(*origin)
-    else:
-        # Either the two guides are the same line, or they're parallel.
-        return default
-
-
-def write_embroidery_file(file_path, stitch_plan, svg):
-    origin = get_origin(svg)
-
-    pattern = libembroidery.embPattern_create()
-
-    for color_block in stitch_plan:
-        add_thread(pattern, make_thread(color_block.color))
-
-        for stitch in color_block:
-            if stitch.stop and stitch is not color_block.last_stitch:
-                # A STOP stitch that is not at the end of a color block
-                # occurs when the user specified "STOP after".  "STOP" is the
-                # same thing as a color change, and the user will assign a
-                # special color at the machine that tells it to pause after.
-                # We need to add another copy of the same color here so that
-                # the stitches after the STOP are still the same color.
-                add_thread(pattern, make_thread(color_block.color))
-
-            flags = get_flags(stitch)
-            libembroidery.embPattern_addStitchAbs(pattern, stitch.x - origin.x, stitch.y - origin.y, flags, 1)
-
-    libembroidery.embPattern_addStitchAbs(pattern, stitch.x - origin.x, stitch.y - origin.y, libembroidery.END, 1)
-
-    # convert from pixels to millimeters
-    libembroidery.embPattern_scale(pattern, 1/PIXELS_PER_MM)
-
-    # SVG and embroidery disagree on the direction of the Y axis
-    libembroidery.embPattern_flipVertical(pattern)
-
-    libembroidery.embPattern_write(pattern, file_path)
diff --git a/inx/embroider_input_T01.inx b/inx/embroider_input_T01.inx
deleted file mode 100644
index 5090310e..00000000
--- a/inx/embroider_input_T01.inx
+++ /dev/null
@@ -1,16 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
-    <_name>T01 file input</_name>
-    <id>org.inkstitch.input.t01</id>
-    <dependency type="executable" location="extensions">embroider_input.py</dependency>
-    <dependency type="executable" location="extensions">inkex.py</dependency>
-    <input>
-        <extension>.t01</extension>
-        <mimetype>application/x-embroidery-t01</mimetype>
-        <_filetypename>Ink/Stitch: Pfaff Embroidery Format (.t01)</_filetypename>
-        <_filetypetooltip>convert T01 file to Ink/Stitch manual-stitch paths</_filetypetooltip>
-    </input>
-    <script>
-        <command reldir="extensions" interpreter="python">embroider_input.py</command>
-    </script>
-</inkscape-extension>
diff --git a/inx/embroider.inx b/inx/inkstitch_embroider.inx
index 74217b73..1f5619a3 100644
--- a/inx/embroider.inx
+++ b/inx/inkstitch_embroider.inx
@@ -2,7 +2,7 @@
 <inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
     <_name>Embroider</_name>
     <id>jonh.embroider</id>
-    <dependency type="executable" location="extensions">embroider.py</dependency>
+    <dependency type="executable" location="extensions">inkstitch.py</dependency>
     <dependency type="executable" location="extensions">inkex.py</dependency>
     <param name="collapse_len_mm" type="float" min="0.0" max="10.0" _gui-text="Collapse length (mm)"> _gui-description="Jump stitches smaller than this will be treated as normal stitches.">3.0</param>
     <param name="hide_layers" type="boolean" _gui-text="Hide other layers" description="Hide all other top-level layers when the embroidery layer is generated, in order to make stitching discernable.">true</param>
@@ -32,6 +32,7 @@
         <_option value="xxx">Singer Embroidery Format(.XXX)</_option>
     </param>
     <param name="path" type="string" _gui-text="Directory"></param>
+    <param name="extension" type="string" gui-hidden="true">embroider</param>
     <effect>
         <object-type>all</object-type>
         <effects-menu>
@@ -39,6 +40,6 @@
         </effects-menu>
     </effect>
     <script>
-        <command reldir="extensions" interpreter="python">embroider.py</command>
+        <command reldir="extensions" interpreter="python">inkstitch.py</command>
     </script>
 </inkscape-extension>
diff --git a/inx/embroider_input_100.inx b/inx/inkstitch_input_100.inx
index 9bbad780..def2011d 100644
--- a/inx/embroider_input_100.inx
+++ b/inx/inkstitch_input_100.inx
@@ -2,7 +2,7 @@
 <inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
     <_name>100 file input</_name>
     <id>org.inkstitch.input.100</id>
-    <dependency type="executable" location="extensions">embroider_input.py</dependency>
+    <dependency type="executable" location="extensions">inkstitch.py</dependency>
     <dependency type="executable" location="extensions">inkex.py</dependency>
     <input>
         <extension>.100</extension>
@@ -10,7 +10,8 @@
         <_filetypename>Ink/Stitch: Toyota Embroidery Format (.100)</_filetypename>
         <_filetypetooltip>convert 100 file to Ink/Stitch manual-stitch paths</_filetypetooltip>
     </input>
+    <param name="extension" type="string" gui-hidden="true">input</param>
     <script>
-        <command reldir="extensions" interpreter="python">embroider_input.py</command>
+        <command reldir="extensions" interpreter="python">inkstitch.py</command>
     </script>
 </inkscape-extension>
diff --git a/inx/embroider_input_10O.inx b/inx/inkstitch_input_10O.inx
index 42f1850e..29b14397 100644
--- a/inx/embroider_input_10O.inx
+++ b/inx/inkstitch_input_10O.inx
@@ -2,7 +2,7 @@
 <inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
     <_name>10O file input</_name>
     <id>org.inkstitch.input.10o</id>
-    <dependency type="executable" location="extensions">embroider_input.py</dependency>
+    <dependency type="executable" location="extensions">inkstitch.py</dependency>
     <dependency type="executable" location="extensions">inkex.py</dependency>
     <input>
         <extension>.10o</extension>
@@ -10,7 +10,8 @@
         <_filetypename>Ink/Stitch: Toyota Embroidery Format (.10o)</_filetypename>
         <_filetypetooltip>convert 10O file to Ink/Stitch manual-stitch paths</_filetypetooltip>
     </input>
+    <param name="extension" type="string" gui-hidden="true">input</param>
     <script>
-        <command reldir="extensions" interpreter="python">embroider_input.py</command>
+        <command reldir="extensions" interpreter="python">inkstitch.py</command>
     </script>
 </inkscape-extension>
diff --git a/inx/embroider_input_BRO.inx b/inx/inkstitch_input_BRO.inx
index 0dc576bf..928195a6 100644
--- a/inx/embroider_input_BRO.inx
+++ b/inx/inkstitch_input_BRO.inx
@@ -2,7 +2,7 @@
 <inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
     <_name>BRO file input</_name>
     <id>org.inkstitch.input.bro</id>
-    <dependency type="executable" location="extensions">embroider_input.py</dependency>
+    <dependency type="executable" location="extensions">inkstitch.py</dependency>
     <dependency type="executable" location="extensions">inkex.py</dependency>
     <input>
         <extension>.bro</extension>
@@ -10,7 +10,8 @@
         <_filetypename>Ink/Stitch: Bits &amp; Volts Embroidery Format (.bro)</_filetypename>
         <_filetypetooltip>convert BRO file to Ink/Stitch manual-stitch paths</_filetypetooltip>
     </input>
+    <param name="extension" type="string" gui-hidden="true">input</param>
     <script>
-        <command reldir="extensions" interpreter="python">embroider_input.py</command>
+        <command reldir="extensions" interpreter="python">inkstitch.py</command>
     </script>
 </inkscape-extension>
diff --git a/inx/embroider_input_COL.inx b/inx/inkstitch_input_COL.inx
index 81002dd7..38ebe7bd 100644
--- a/inx/embroider_input_COL.inx
+++ b/inx/inkstitch_input_COL.inx
@@ -2,7 +2,7 @@
 <inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
     <_name>COL file input</_name>
     <id>org.inkstitch.input.col</id>
-    <dependency type="executable" location="extensions">embroider_input.py</dependency>
+    <dependency type="executable" location="extensions">inkstitch.py</dependency>
     <dependency type="executable" location="extensions">inkex.py</dependency>
     <input>
         <extension>.col</extension>
@@ -10,7 +10,8 @@
         <_filetypename>Ink/Stitch: Embroidery Thread Color Format (.col)</_filetypename>
         <_filetypetooltip>convert COL file to Ink/Stitch manual-stitch paths</_filetypetooltip>
     </input>
+    <param name="extension" type="string" gui-hidden="true">input</param>
     <script>
-        <command reldir="extensions" interpreter="python">embroider_input.py</command>
+        <command reldir="extensions" interpreter="python">inkstitch.py</command>
     </script>
 </inkscape-extension>
diff --git a/inx/embroider_input_CSD.inx b/inx/inkstitch_input_CSD.inx
index 8ebb94b9..444270f0 100644
--- a/inx/embroider_input_CSD.inx
+++ b/inx/inkstitch_input_CSD.inx
@@ -2,7 +2,7 @@
 <inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
     <_name>CSD file input</_name>
     <id>org.inkstitch.input.csd</id>
-    <dependency type="executable" location="extensions">embroider_input.py</dependency>
+    <dependency type="executable" location="extensions">inkstitch.py</dependency>
     <dependency type="executable" location="extensions">inkex.py</dependency>
     <input>
         <extension>.csd</extension>
@@ -10,7 +10,8 @@
         <_filetypename>Ink/Stitch: Singer Embroidery Format (.csd)</_filetypename>
         <_filetypetooltip>convert CSD file to Ink/Stitch manual-stitch paths</_filetypetooltip>
     </input>
+    <param name="extension" type="string" gui-hidden="true">input</param>
     <script>
-        <command reldir="extensions" interpreter="python">embroider_input.py</command>
+        <command reldir="extensions" interpreter="python">inkstitch.py</command>
     </script>
 </inkscape-extension>
diff --git a/inx/embroider_input_CSV.inx b/inx/inkstitch_input_CSV.inx
index c3f972d9..0c3e2096 100644
--- a/inx/embroider_input_CSV.inx
+++ b/inx/inkstitch_input_CSV.inx
@@ -2,7 +2,7 @@
 <inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
     <_name>CSV file input</_name>
     <id>org.inkstitch.input.csv</id>
-    <dependency type="executable" location="extensions">embroider_input.py</dependency>
+    <dependency type="executable" location="extensions">inkstitch.py</dependency>
     <dependency type="executable" location="extensions">inkex.py</dependency>
     <input>
         <extension>.csv</extension>
@@ -10,7 +10,8 @@
         <_filetypename>Ink/Stitch: Comma Separated Values Format (.csv)</_filetypename>
         <_filetypetooltip>convert CSV file to Ink/Stitch manual-stitch paths</_filetypetooltip>
     </input>
+    <param name="extension" type="string" gui-hidden="true">input</param>
     <script>
-        <command reldir="extensions" interpreter="python">embroider_input.py</command>
+        <command reldir="extensions" interpreter="python">inkstitch.py</command>
     </script>
 </inkscape-extension>
diff --git a/inx/embroider_input_DAT.inx b/inx/inkstitch_input_DAT.inx
index 1045153a..e82694b8 100644
--- a/inx/embroider_input_DAT.inx
+++ b/inx/inkstitch_input_DAT.inx
@@ -2,7 +2,7 @@
 <inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
     <_name>DAT file input</_name>
     <id>org.inkstitch.input.dat</id>
-    <dependency type="executable" location="extensions">embroider_input.py</dependency>
+    <dependency type="executable" location="extensions">inkstitch.py</dependency>
     <dependency type="executable" location="extensions">inkex.py</dependency>
     <input>
         <extension>.dat</extension>
@@ -10,7 +10,8 @@
         <_filetypename>Ink/Stitch: Barudan Embroidery Format (.dat)</_filetypename>
         <_filetypetooltip>convert DAT file to Ink/Stitch manual-stitch paths</_filetypetooltip>
     </input>
+    <param name="extension" type="string" gui-hidden="true">input</param>
     <script>
-        <command reldir="extensions" interpreter="python">embroider_input.py</command>
+        <command reldir="extensions" interpreter="python">inkstitch.py</command>
     </script>
 </inkscape-extension>
diff --git a/inx/embroider_input_DSB.inx b/inx/inkstitch_input_DSB.inx
index f81c7ca2..8b7c6b02 100644
--- a/inx/embroider_input_DSB.inx
+++ b/inx/inkstitch_input_DSB.inx
@@ -2,7 +2,7 @@
 <inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
     <_name>DSB file input</_name>
     <id>org.inkstitch.input.dsb</id>
-    <dependency type="executable" location="extensions">embroider_input.py</dependency>
+    <dependency type="executable" location="extensions">inkstitch.py</dependency>
     <dependency type="executable" location="extensions">inkex.py</dependency>
     <input>
         <extension>.dsb</extension>
@@ -10,7 +10,8 @@
         <_filetypename>Ink/Stitch: Barudan Embroidery Format (.dsb)</_filetypename>
         <_filetypetooltip>convert DSB file to Ink/Stitch manual-stitch paths</_filetypetooltip>
     </input>
+    <param name="extension" type="string" gui-hidden="true">input</param>
     <script>
-        <command reldir="extensions" interpreter="python">embroider_input.py</command>
+        <command reldir="extensions" interpreter="python">inkstitch.py</command>
     </script>
 </inkscape-extension>
diff --git a/inx/embroider_input_DST.inx b/inx/inkstitch_input_DST.inx
index 414b7470..b3eee601 100644
--- a/inx/embroider_input_DST.inx
+++ b/inx/inkstitch_input_DST.inx
@@ -2,7 +2,7 @@
 <inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
     <_name>DST file input</_name>
     <id>org.inkstitch.input.dst</id>
-    <dependency type="executable" location="extensions">embroider_input.py</dependency>
+    <dependency type="executable" location="extensions">inkstitch.py</dependency>
     <dependency type="executable" location="extensions">inkex.py</dependency>
     <input>
         <extension>.dst</extension>
@@ -10,7 +10,8 @@
         <_filetypename>Ink/Stitch: Tajima Embroidery Format (.dst)</_filetypename>
         <_filetypetooltip>convert DST file to Ink/Stitch manual-stitch paths</_filetypetooltip>
     </input>
+    <param name="extension" type="string" gui-hidden="true">input</param>
     <script>
-        <command reldir="extensions" interpreter="python">embroider_input.py</command>
+        <command reldir="extensions" interpreter="python">inkstitch.py</command>
     </script>
 </inkscape-extension>
diff --git a/inx/embroider_input_DSZ.inx b/inx/inkstitch_input_DSZ.inx
index 9c81a0ad..388aeda0 100644
--- a/inx/embroider_input_DSZ.inx
+++ b/inx/inkstitch_input_DSZ.inx
@@ -2,7 +2,7 @@
 <inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
     <_name>DSZ file input</_name>
     <id>org.inkstitch.input.dsz</id>
-    <dependency type="executable" location="extensions">embroider_input.py</dependency>
+    <dependency type="executable" location="extensions">inkstitch.py</dependency>
     <dependency type="executable" location="extensions">inkex.py</dependency>
     <input>
         <extension>.dsz</extension>
@@ -10,7 +10,8 @@
         <_filetypename>Ink/Stitch: ZSK USA Embroidery Format (.dsz)</_filetypename>
         <_filetypetooltip>convert DSZ file to Ink/Stitch manual-stitch paths</_filetypetooltip>
     </input>
+    <param name="extension" type="string" gui-hidden="true">input</param>
     <script>
-        <command reldir="extensions" interpreter="python">embroider_input.py</command>
+        <command reldir="extensions" interpreter="python">inkstitch.py</command>
     </script>
 </inkscape-extension>
diff --git a/inx/embroider_input_EDR.inx b/inx/inkstitch_input_EDR.inx
index 9276fd17..92cf7d14 100644
--- a/inx/embroider_input_EDR.inx
+++ b/inx/inkstitch_input_EDR.inx
@@ -2,7 +2,7 @@
 <inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
     <_name>EDR file input</_name>
     <id>org.inkstitch.input.edr</id>
-    <dependency type="executable" location="extensions">embroider_input.py</dependency>
+    <dependency type="executable" location="extensions">inkstitch.py</dependency>
     <dependency type="executable" location="extensions">inkex.py</dependency>
     <input>
         <extension>.edr</extension>
@@ -10,7 +10,8 @@
         <_filetypename>Ink/Stitch: Embird Embroidery Format (.edr)</_filetypename>
         <_filetypetooltip>convert EDR file to Ink/Stitch manual-stitch paths</_filetypetooltip>
     </input>
+    <param name="extension" type="string" gui-hidden="true">input</param>
     <script>
-        <command reldir="extensions" interpreter="python">embroider_input.py</command>
+        <command reldir="extensions" interpreter="python">inkstitch.py</command>
     </script>
 </inkscape-extension>
diff --git a/inx/embroider_input_EMD.inx b/inx/inkstitch_input_EMD.inx
index bb20f977..c05da24f 100644
--- a/inx/embroider_input_EMD.inx
+++ b/inx/inkstitch_input_EMD.inx
@@ -2,7 +2,7 @@
 <inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
     <_name>EMD file input</_name>
     <id>org.inkstitch.input.emd</id>
-    <dependency type="executable" location="extensions">embroider_input.py</dependency>
+    <dependency type="executable" location="extensions">inkstitch.py</dependency>
     <dependency type="executable" location="extensions">inkex.py</dependency>
     <input>
         <extension>.emd</extension>
@@ -10,7 +10,8 @@
         <_filetypename>Ink/Stitch: Elna Embroidery Format (.emd)</_filetypename>
         <_filetypetooltip>convert EMD file to Ink/Stitch manual-stitch paths</_filetypetooltip>
     </input>
+    <param name="extension" type="string" gui-hidden="true">input</param>
     <script>
-        <command reldir="extensions" interpreter="python">embroider_input.py</command>
+        <command reldir="extensions" interpreter="python">inkstitch.py</command>
     </script>
 </inkscape-extension>
diff --git a/inx/embroider_input_EXP.inx b/inx/inkstitch_input_EXP.inx
index 41bae8ce..2c5997d5 100644
--- a/inx/embroider_input_EXP.inx
+++ b/inx/inkstitch_input_EXP.inx
@@ -2,7 +2,7 @@
 <inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
     <_name>EXP file input</_name>
     <id>org.inkstitch.input.exp</id>
-    <dependency type="executable" location="extensions">embroider_input.py</dependency>
+    <dependency type="executable" location="extensions">inkstitch.py</dependency>
     <dependency type="executable" location="extensions">inkex.py</dependency>
     <input>
         <extension>.exp</extension>
@@ -10,7 +10,8 @@
         <_filetypename>Ink/Stitch: Melco Embroidery Format (.exp)</_filetypename>
         <_filetypetooltip>convert EXP file to Ink/Stitch manual-stitch paths</_filetypetooltip>
     </input>
+    <param name="extension" type="string" gui-hidden="true">input</param>
     <script>
-        <command reldir="extensions" interpreter="python">embroider_input.py</command>
+        <command reldir="extensions" interpreter="python">inkstitch.py</command>
     </script>
 </inkscape-extension>
diff --git a/inx/embroider_input_EXY.inx b/inx/inkstitch_input_EXY.inx
index a2e792c4..78de68d8 100644
--- a/inx/embroider_input_EXY.inx
+++ b/inx/inkstitch_input_EXY.inx
@@ -2,7 +2,7 @@
 <inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
     <_name>EXY file input</_name>
     <id>org.inkstitch.input.exy</id>
-    <dependency type="executable" location="extensions">embroider_input.py</dependency>
+    <dependency type="executable" location="extensions">inkstitch.py</dependency>
     <dependency type="executable" location="extensions">inkex.py</dependency>
     <input>
         <extension>.exy</extension>
@@ -10,7 +10,8 @@
         <_filetypename>Ink/Stitch: Eltac Embroidery Format (.exy)</_filetypename>
         <_filetypetooltip>convert EXY file to Ink/Stitch manual-stitch paths</_filetypetooltip>
     </input>
+    <param name="extension" type="string" gui-hidden="true">input</param>
     <script>
-        <command reldir="extensions" interpreter="python">embroider_input.py</command>
+        <command reldir="extensions" interpreter="python">inkstitch.py</command>
     </script>
 </inkscape-extension>
diff --git a/inx/embroider_input_FXY.inx b/inx/inkstitch_input_FXY.inx
index 4d77022e..c2be8c60 100644
--- a/inx/embroider_input_FXY.inx
+++ b/inx/inkstitch_input_FXY.inx
@@ -2,7 +2,7 @@
 <inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
     <_name>FXY file input</_name>
     <id>org.inkstitch.input.fxy</id>
-    <dependency type="executable" location="extensions">embroider_input.py</dependency>
+    <dependency type="executable" location="extensions">inkstitch.py</dependency>
     <dependency type="executable" location="extensions">inkex.py</dependency>
     <input>
         <extension>.fxy</extension>
@@ -10,7 +10,8 @@
         <_filetypename>Ink/Stitch: Fortron Embroidery Format (.fxy)</_filetypename>
         <_filetypetooltip>convert FXY file to Ink/Stitch manual-stitch paths</_filetypetooltip>
     </input>
+    <param name="extension" type="string" gui-hidden="true">input</param>
     <script>
-        <command reldir="extensions" interpreter="python">embroider_input.py</command>
+        <command reldir="extensions" interpreter="python">inkstitch.py</command>
     </script>
 </inkscape-extension>
diff --git a/inx/embroider_input_GT.inx b/inx/inkstitch_input_GT.inx
index 3b482244..20a9fda0 100644
--- a/inx/embroider_input_GT.inx
+++ b/inx/inkstitch_input_GT.inx
@@ -2,7 +2,7 @@
 <inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
     <_name>GT file input</_name>
     <id>org.inkstitch.input.gt</id>
-    <dependency type="executable" location="extensions">embroider_input.py</dependency>
+    <dependency type="executable" location="extensions">inkstitch.py</dependency>
     <dependency type="executable" location="extensions">inkex.py</dependency>
     <input>
         <extension>.gt</extension>
@@ -10,7 +10,8 @@
         <_filetypename>Ink/Stitch: Gold Thread Embroidery Format (.gt)</_filetypename>
         <_filetypetooltip>convert GT file to Ink/Stitch manual-stitch paths</_filetypetooltip>
     </input>
+    <param name="extension" type="string" gui-hidden="true">input</param>
     <script>
-        <command reldir="extensions" interpreter="python">embroider_input.py</command>
+        <command reldir="extensions" interpreter="python">inkstitch.py</command>
     </script>
 </inkscape-extension>
diff --git a/inx/embroider_input_HUS.inx b/inx/inkstitch_input_HUS.inx
index 3b19ee87..bbac96a2 100644
--- a/inx/embroider_input_HUS.inx
+++ b/inx/inkstitch_input_HUS.inx
@@ -2,7 +2,7 @@
 <inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
     <_name>HUS file input</_name>
     <id>org.inkstitch.input.hus</id>
-    <dependency type="executable" location="extensions">embroider_input.py</dependency>
+    <dependency type="executable" location="extensions">inkstitch.py</dependency>
     <dependency type="executable" location="extensions">inkex.py</dependency>
     <input>
         <extension>.hus</extension>
@@ -10,7 +10,8 @@
         <_filetypename>Ink/Stitch: Husqvarna Viking Embroidery Format (.hus)</_filetypename>
         <_filetypetooltip>convert HUS file to Ink/Stitch manual-stitch paths</_filetypetooltip>
     </input>
+    <param name="extension" type="string" gui-hidden="true">input</param>
     <script>
-        <command reldir="extensions" interpreter="python">embroider_input.py</command>
+        <command reldir="extensions" interpreter="python">inkstitch.py</command>
     </script>
 </inkscape-extension>
diff --git a/inx/embroider_input_INB.inx b/inx/inkstitch_input_INB.inx
index 24c6535d..7409a853 100644
--- a/inx/embroider_input_INB.inx
+++ b/inx/inkstitch_input_INB.inx
@@ -2,7 +2,7 @@
 <inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
     <_name>INB file input</_name>
     <id>org.inkstitch.input.inb</id>
-    <dependency type="executable" location="extensions">embroider_input.py</dependency>
+    <dependency type="executable" location="extensions">inkstitch.py</dependency>
     <dependency type="executable" location="extensions">inkex.py</dependency>
     <input>
         <extension>.inb</extension>
@@ -10,7 +10,8 @@
         <_filetypename>Ink/Stitch: Inbro Embroidery Format (.inb)</_filetypename>
         <_filetypetooltip>convert INB file to Ink/Stitch manual-stitch paths</_filetypetooltip>
     </input>
+    <param name="extension" type="string" gui-hidden="true">input</param>
     <script>
-        <command reldir="extensions" interpreter="python">embroider_input.py</command>
+        <command reldir="extensions" interpreter="python">inkstitch.py</command>
     </script>
 </inkscape-extension>
diff --git a/inx/embroider_input_INF.inx b/inx/inkstitch_input_INF.inx
index db7e5d57..9c07ed7f 100644
--- a/inx/embroider_input_INF.inx
+++ b/inx/inkstitch_input_INF.inx
@@ -2,7 +2,7 @@
 <inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
     <_name>INF file input</_name>
     <id>org.inkstitch.input.inf</id>
-    <dependency type="executable" location="extensions">embroider_input.py</dependency>
+    <dependency type="executable" location="extensions">inkstitch.py</dependency>
     <dependency type="executable" location="extensions">inkex.py</dependency>
     <input>
         <extension>.inf</extension>
@@ -10,7 +10,8 @@
         <_filetypename>Ink/Stitch: Embroidery Color Format (.inf)</_filetypename>
         <_filetypetooltip>convert INF file to Ink/Stitch manual-stitch paths</_filetypetooltip>
     </input>
+    <param name="extension" type="string" gui-hidden="true">input</param>
     <script>
-        <command reldir="extensions" interpreter="python">embroider_input.py</command>
+        <command reldir="extensions" interpreter="python">inkstitch.py</command>
     </script>
 </inkscape-extension>
diff --git a/inx/embroider_input_JEF.inx b/inx/inkstitch_input_JEF.inx
index c2030622..364e969f 100644
--- a/inx/embroider_input_JEF.inx
+++ b/inx/inkstitch_input_JEF.inx
@@ -2,7 +2,7 @@
 <inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
     <_name>JEF file input</_name>
     <id>org.inkstitch.input.jef</id>
-    <dependency type="executable" location="extensions">embroider_input.py</dependency>
+    <dependency type="executable" location="extensions">inkstitch.py</dependency>
     <dependency type="executable" location="extensions">inkex.py</dependency>
     <input>
         <extension>.jef</extension>
@@ -10,7 +10,8 @@
         <_filetypename>Ink/Stitch: Janome Embroidery Format (.jef)</_filetypename>
         <_filetypetooltip>convert JEF file to Ink/Stitch manual-stitch paths</_filetypetooltip>
     </input>
+    <param name="extension" type="string" gui-hidden="true">input</param>
     <script>
-        <command reldir="extensions" interpreter="python">embroider_input.py</command>
+        <command reldir="extensions" interpreter="python">inkstitch.py</command>
     </script>
 </inkscape-extension>
diff --git a/inx/embroider_input_KSM.inx b/inx/inkstitch_input_KSM.inx
index 2869ea07..b01eb195 100644
--- a/inx/embroider_input_KSM.inx
+++ b/inx/inkstitch_input_KSM.inx
@@ -2,7 +2,7 @@
 <inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
     <_name>KSM file input</_name>
     <id>org.inkstitch.input.ksm</id>
-    <dependency type="executable" location="extensions">embroider_input.py</dependency>
+    <dependency type="executable" location="extensions">inkstitch.py</dependency>
     <dependency type="executable" location="extensions">inkex.py</dependency>
     <input>
         <extension>.ksm</extension>
@@ -10,7 +10,8 @@
         <_filetypename>Ink/Stitch: Pfaff Embroidery Format (.ksm)</_filetypename>
         <_filetypetooltip>convert KSM file to Ink/Stitch manual-stitch paths</_filetypetooltip>
     </input>
+    <param name="extension" type="string" gui-hidden="true">input</param>
     <script>
-        <command reldir="extensions" interpreter="python">embroider_input.py</command>
+        <command reldir="extensions" interpreter="python">inkstitch.py</command>
     </script>
 </inkscape-extension>
diff --git a/inx/embroider_input_MAX.inx b/inx/inkstitch_input_MAX.inx
index 2dbbe2cc..0f5ed952 100644
--- a/inx/embroider_input_MAX.inx
+++ b/inx/inkstitch_input_MAX.inx
@@ -2,7 +2,7 @@
 <inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
     <_name>MAX file input</_name>
     <id>org.inkstitch.input.max</id>
-    <dependency type="executable" location="extensions">embroider_input.py</dependency>
+    <dependency type="executable" location="extensions">inkstitch.py</dependency>
     <dependency type="executable" location="extensions">inkex.py</dependency>
     <input>
         <extension>.max</extension>
@@ -10,7 +10,8 @@
         <_filetypename>Ink/Stitch: Pfaff Embroidery Format (.max)</_filetypename>
         <_filetypetooltip>convert MAX file to Ink/Stitch manual-stitch paths</_filetypetooltip>
     </input>
+    <param name="extension" type="string" gui-hidden="true">input</param>
     <script>
-        <command reldir="extensions" interpreter="python">embroider_input.py</command>
+        <command reldir="extensions" interpreter="python">inkstitch.py</command>
     </script>
 </inkscape-extension>
diff --git a/inx/embroider_input_MIT.inx b/inx/inkstitch_input_MIT.inx
index 10f5dfd3..a0181182 100644
--- a/inx/embroider_input_MIT.inx
+++ b/inx/inkstitch_input_MIT.inx
@@ -2,7 +2,7 @@
 <inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
     <_name>MIT file input</_name>
     <id>org.inkstitch.input.mit</id>
-    <dependency type="executable" location="extensions">embroider_input.py</dependency>
+    <dependency type="executable" location="extensions">inkstitch.py</dependency>
     <dependency type="executable" location="extensions">inkex.py</dependency>
     <input>
         <extension>.mit</extension>
@@ -10,7 +10,8 @@
         <_filetypename>Ink/Stitch: Mitsubishi Embroidery Format (.mit)</_filetypename>
         <_filetypetooltip>convert MIT file to Ink/Stitch manual-stitch paths</_filetypetooltip>
     </input>
+    <param name="extension" type="string" gui-hidden="true">input</param>
     <script>
-        <command reldir="extensions" interpreter="python">embroider_input.py</command>
+        <command reldir="extensions" interpreter="python">inkstitch.py</command>
     </script>
 </inkscape-extension>
diff --git a/inx/embroider_input_NEW.inx b/inx/inkstitch_input_NEW.inx
index f13a7009..15d877d8 100644
--- a/inx/embroider_input_NEW.inx
+++ b/inx/inkstitch_input_NEW.inx
@@ -2,7 +2,7 @@
 <inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
     <_name>NEW file input</_name>
     <id>org.inkstitch.input.new</id>
-    <dependency type="executable" location="extensions">embroider_input.py</dependency>
+    <dependency type="executable" location="extensions">inkstitch.py</dependency>
     <dependency type="executable" location="extensions">inkex.py</dependency>
     <input>
         <extension>.new</extension>
@@ -10,7 +10,8 @@
         <_filetypename>Ink/Stitch: Ameco Embroidery Format (.new)</_filetypename>
         <_filetypetooltip>convert NEW file to Ink/Stitch manual-stitch paths</_filetypetooltip>
     </input>
+    <param name="extension" type="string" gui-hidden="true">input</param>
     <script>
-        <command reldir="extensions" interpreter="python">embroider_input.py</command>
+        <command reldir="extensions" interpreter="python">inkstitch.py</command>
     </script>
 </inkscape-extension>
diff --git a/inx/embroider_input_OFM.inx b/inx/inkstitch_input_OFM.inx
index 9086900d..3e162355 100644
--- a/inx/embroider_input_OFM.inx
+++ b/inx/inkstitch_input_OFM.inx
@@ -2,7 +2,7 @@
 <inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
     <_name>OFM file input</_name>
     <id>org.inkstitch.input.ofm</id>
-    <dependency type="executable" location="extensions">embroider_input.py</dependency>
+    <dependency type="executable" location="extensions">inkstitch.py</dependency>
     <dependency type="executable" location="extensions">inkex.py</dependency>
     <input>
         <extension>.ofm</extension>
@@ -10,7 +10,8 @@
         <_filetypename>Ink/Stitch: Melco Embroidery Format (.ofm)</_filetypename>
         <_filetypetooltip>convert OFM file to Ink/Stitch manual-stitch paths</_filetypetooltip>
     </input>
+    <param name="extension" type="string" gui-hidden="true">input</param>
     <script>
-        <command reldir="extensions" interpreter="python">embroider_input.py</command>
+        <command reldir="extensions" interpreter="python">inkstitch.py</command>
     </script>
 </inkscape-extension>
diff --git a/inx/embroider_input_PCD.inx b/inx/inkstitch_input_PCD.inx
index fc9c7362..eff3c2f7 100644
--- a/inx/embroider_input_PCD.inx
+++ b/inx/inkstitch_input_PCD.inx
@@ -2,7 +2,7 @@
 <inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
     <_name>PCD file input</_name>
     <id>org.inkstitch.input.pcd</id>
-    <dependency type="executable" location="extensions">embroider_input.py</dependency>
+    <dependency type="executable" location="extensions">inkstitch.py</dependency>
     <dependency type="executable" location="extensions">inkex.py</dependency>
     <input>
         <extension>.pcd</extension>
@@ -10,7 +10,8 @@
         <_filetypename>Ink/Stitch: Pfaff Embroidery Format (.pcd)</_filetypename>
         <_filetypetooltip>convert PCD file to Ink/Stitch manual-stitch paths</_filetypetooltip>
     </input>
+    <param name="extension" type="string" gui-hidden="true">input</param>
     <script>
-        <command reldir="extensions" interpreter="python">embroider_input.py</command>
+        <command reldir="extensions" interpreter="python">inkstitch.py</command>
     </script>
 </inkscape-extension>
diff --git a/inx/embroider_input_PCM.inx b/inx/inkstitch_input_PCM.inx
index fe6c3e22..684b7e20 100644
--- a/inx/embroider_input_PCM.inx
+++ b/inx/inkstitch_input_PCM.inx
@@ -2,7 +2,7 @@
 <inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
     <_name>PCM file input</_name>
     <id>org.inkstitch.input.pcm</id>
-    <dependency type="executable" location="extensions">embroider_input.py</dependency>
+    <dependency type="executable" location="extensions">inkstitch.py</dependency>
     <dependency type="executable" location="extensions">inkex.py</dependency>
     <input>
         <extension>.pcm</extension>
@@ -10,7 +10,8 @@
         <_filetypename>Ink/Stitch: Pfaff Embroidery Format (.pcm)</_filetypename>
         <_filetypetooltip>convert PCM file to Ink/Stitch manual-stitch paths</_filetypetooltip>
     </input>
+    <param name="extension" type="string" gui-hidden="true">input</param>
     <script>
-        <command reldir="extensions" interpreter="python">embroider_input.py</command>
+        <command reldir="extensions" interpreter="python">inkstitch.py</command>
     </script>
 </inkscape-extension>
diff --git a/inx/embroider_input_PCQ.inx b/inx/inkstitch_input_PCQ.inx
index 932a9568..44d2d6df 100644
--- a/inx/embroider_input_PCQ.inx
+++ b/inx/inkstitch_input_PCQ.inx
@@ -2,7 +2,7 @@
 <inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
     <_name>PCQ file input</_name>
     <id>org.inkstitch.input.pcq</id>
-    <dependency type="executable" location="extensions">embroider_input.py</dependency>
+    <dependency type="executable" location="extensions">inkstitch.py</dependency>
     <dependency type="executable" location="extensions">inkex.py</dependency>
     <input>
         <extension>.pcq</extension>
@@ -10,7 +10,8 @@
         <_filetypename>Ink/Stitch: Pfaff Embroidery Format (.pcq)</_filetypename>
         <_filetypetooltip>convert PCQ file to Ink/Stitch manual-stitch paths</_filetypetooltip>
     </input>
+    <param name="extension" type="string" gui-hidden="true">input</param>
     <script>
-        <command reldir="extensions" interpreter="python">embroider_input.py</command>
+        <command reldir="extensions" interpreter="python">inkstitch.py</command>
     </script>
 </inkscape-extension>
diff --git a/inx/embroider_input_PCS.inx b/inx/inkstitch_input_PCS.inx
index d9d058c0..1a030e53 100644
--- a/inx/embroider_input_PCS.inx
+++ b/inx/inkstitch_input_PCS.inx
@@ -2,7 +2,7 @@
 <inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
     <_name>PCS file input</_name>
     <id>org.inkstitch.input.pcs</id>
-    <dependency type="executable" location="extensions">embroider_input.py</dependency>
+    <dependency type="executable" location="extensions">inkstitch.py</dependency>
     <dependency type="executable" location="extensions">inkex.py</dependency>
     <input>
         <extension>.pcs</extension>
@@ -10,7 +10,8 @@
         <_filetypename>Ink/Stitch: Pfaff Embroidery Format (.pcs)</_filetypename>
         <_filetypetooltip>convert PCS file to Ink/Stitch manual-stitch paths</_filetypetooltip>
     </input>
+    <param name="extension" type="string" gui-hidden="true">input</param>
     <script>
-        <command reldir="extensions" interpreter="python">embroider_input.py</command>
+        <command reldir="extensions" interpreter="python">inkstitch.py</command>
     </script>
 </inkscape-extension>
diff --git a/inx/embroider_input_PEC.inx b/inx/inkstitch_input_PEC.inx
index 382dedff..885c0125 100644
--- a/inx/embroider_input_PEC.inx
+++ b/inx/inkstitch_input_PEC.inx
@@ -2,7 +2,7 @@
 <inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
     <_name>PEC file input</_name>
     <id>org.inkstitch.input.pec</id>
-    <dependency type="executable" location="extensions">embroider_input.py</dependency>
+    <dependency type="executable" location="extensions">inkstitch.py</dependency>
     <dependency type="executable" location="extensions">inkex.py</dependency>
     <input>
         <extension>.pec</extension>
@@ -10,7 +10,8 @@
         <_filetypename>Ink/Stitch: Brother Embroidery Format (.pec)</_filetypename>
         <_filetypetooltip>convert PEC file to Ink/Stitch manual-stitch paths</_filetypetooltip>
     </input>
+    <param name="extension" type="string" gui-hidden="true">input</param>
     <script>
-        <command reldir="extensions" interpreter="python">embroider_input.py</command>
+        <command reldir="extensions" interpreter="python">inkstitch.py</command>
     </script>
 </inkscape-extension>
diff --git a/inx/embroider_input_PES.inx b/inx/inkstitch_input_PES.inx
index 451a4da6..6faa06be 100644
--- a/inx/embroider_input_PES.inx
+++ b/inx/inkstitch_input_PES.inx
@@ -2,7 +2,7 @@
 <inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
     <_name>PES file input</_name>
     <id>org.inkstitch.input.pes</id>
-    <dependency type="executable" location="extensions">embroider_input.py</dependency>
+    <dependency type="executable" location="extensions">inkstitch.py</dependency>
     <dependency type="executable" location="extensions">inkex.py</dependency>
     <input>
         <extension>.pes</extension>
@@ -10,7 +10,8 @@
         <_filetypename>Ink/Stitch: Brother Embroidery Format (.pes)</_filetypename>
         <_filetypetooltip>convert PES file to Ink/Stitch manual-stitch paths</_filetypetooltip>
     </input>
+    <param name="extension" type="string" gui-hidden="true">input</param>
     <script>
-        <command reldir="extensions" interpreter="python">embroider_input.py</command>
+        <command reldir="extensions" interpreter="python">inkstitch.py</command>
     </script>
 </inkscape-extension>
diff --git a/inx/embroider_input_PHB.inx b/inx/inkstitch_input_PHB.inx
index ab4daf67..0e14f097 100644
--- a/inx/embroider_input_PHB.inx
+++ b/inx/inkstitch_input_PHB.inx
@@ -2,7 +2,7 @@
 <inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
     <_name>PHB file input</_name>
     <id>org.inkstitch.input.phb</id>
-    <dependency type="executable" location="extensions">embroider_input.py</dependency>
+    <dependency type="executable" location="extensions">inkstitch.py</dependency>
     <dependency type="executable" location="extensions">inkex.py</dependency>
     <input>
         <extension>.phb</extension>
@@ -10,7 +10,8 @@
         <_filetypename>Ink/Stitch: Brother Embroidery Format (.phb)</_filetypename>
         <_filetypetooltip>convert PHB file to Ink/Stitch manual-stitch paths</_filetypetooltip>
     </input>
+    <param name="extension" type="string" gui-hidden="true">input</param>
     <script>
-        <command reldir="extensions" interpreter="python">embroider_input.py</command>
+        <command reldir="extensions" interpreter="python">inkstitch.py</command>
     </script>
 </inkscape-extension>
diff --git a/inx/embroider_input_PHC.inx b/inx/inkstitch_input_PHC.inx
index e36739af..3c2d10f5 100644
--- a/inx/embroider_input_PHC.inx
+++ b/inx/inkstitch_input_PHC.inx
@@ -2,7 +2,7 @@
 <inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
     <_name>PHC file input</_name>
     <id>org.inkstitch.input.phc</id>
-    <dependency type="executable" location="extensions">embroider_input.py</dependency>
+    <dependency type="executable" location="extensions">inkstitch.py</dependency>
     <dependency type="executable" location="extensions">inkex.py</dependency>
     <input>
         <extension>.phc</extension>
@@ -10,7 +10,8 @@
         <_filetypename>Ink/Stitch: Brother Embroidery Format (.phc)</_filetypename>
         <_filetypetooltip>convert PHC file to Ink/Stitch manual-stitch paths</_filetypetooltip>
     </input>
+    <param name="extension" type="string" gui-hidden="true">input</param>
     <script>
-        <command reldir="extensions" interpreter="python">embroider_input.py</command>
+        <command reldir="extensions" interpreter="python">inkstitch.py</command>
     </script>
 </inkscape-extension>
diff --git a/inx/embroider_input_PLT.inx b/inx/inkstitch_input_PLT.inx
index ec2374da..d811ff02 100644
--- a/inx/embroider_input_PLT.inx
+++ b/inx/inkstitch_input_PLT.inx
@@ -2,7 +2,7 @@
 <inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
     <_name>PLT file input</_name>
     <id>org.inkstitch.input.plt</id>
-    <dependency type="executable" location="extensions">embroider_input.py</dependency>
+    <dependency type="executable" location="extensions">inkstitch.py</dependency>
     <dependency type="executable" location="extensions">inkex.py</dependency>
     <input>
         <extension>.plt</extension>
@@ -10,7 +10,8 @@
         <_filetypename>Ink/Stitch: AutoCAD Plot Drawing Format (.plt)</_filetypename>
         <_filetypetooltip>convert PLT file to Ink/Stitch manual-stitch paths</_filetypetooltip>
     </input>
+    <param name="extension" type="string" gui-hidden="true">input</param>
     <script>
-        <command reldir="extensions" interpreter="python">embroider_input.py</command>
+        <command reldir="extensions" interpreter="python">inkstitch.py</command>
     </script>
 </inkscape-extension>
diff --git a/inx/embroider_input_RGB.inx b/inx/inkstitch_input_RGB.inx
index a73955c1..b64e285b 100644
--- a/inx/embroider_input_RGB.inx
+++ b/inx/inkstitch_input_RGB.inx
@@ -2,7 +2,7 @@
 <inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
     <_name>RGB file input</_name>
     <id>org.inkstitch.input.rgb</id>
-    <dependency type="executable" location="extensions">embroider_input.py</dependency>
+    <dependency type="executable" location="extensions">inkstitch.py</dependency>
     <dependency type="executable" location="extensions">inkex.py</dependency>
     <input>
         <extension>.rgb</extension>
@@ -10,7 +10,8 @@
         <_filetypename>Ink/Stitch: RGB Embroidery Format (.rgb)</_filetypename>
         <_filetypetooltip>convert RGB file to Ink/Stitch manual-stitch paths</_filetypetooltip>
     </input>
+    <param name="extension" type="string" gui-hidden="true">input</param>
     <script>
-        <command reldir="extensions" interpreter="python">embroider_input.py</command>
+        <command reldir="extensions" interpreter="python">inkstitch.py</command>
     </script>
 </inkscape-extension>
diff --git a/inx/embroider_input_SEW.inx b/inx/inkstitch_input_SEW.inx
index 8cb41136..a7661c97 100644
--- a/inx/embroider_input_SEW.inx
+++ b/inx/inkstitch_input_SEW.inx
@@ -2,7 +2,7 @@
 <inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
     <_name>SEW file input</_name>
     <id>org.inkstitch.input.sew</id>
-    <dependency type="executable" location="extensions">embroider_input.py</dependency>
+    <dependency type="executable" location="extensions">inkstitch.py</dependency>
     <dependency type="executable" location="extensions">inkex.py</dependency>
     <input>
         <extension>.sew</extension>
@@ -10,7 +10,8 @@
         <_filetypename>Ink/Stitch: Janome Embroidery Format (.sew)</_filetypename>
         <_filetypetooltip>convert SEW file to Ink/Stitch manual-stitch paths</_filetypetooltip>
     </input>
+    <param name="extension" type="string" gui-hidden="true">input</param>
     <script>
-        <command reldir="extensions" interpreter="python">embroider_input.py</command>
+        <command reldir="extensions" interpreter="python">inkstitch.py</command>
     </script>
 </inkscape-extension>
diff --git a/inx/embroider_input_SHV.inx b/inx/inkstitch_input_SHV.inx
index 20735cc8..7aad470c 100644
--- a/inx/embroider_input_SHV.inx
+++ b/inx/inkstitch_input_SHV.inx
@@ -2,7 +2,7 @@
 <inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
     <_name>SHV file input</_name>
     <id>org.inkstitch.input.shv</id>
-    <dependency type="executable" location="extensions">embroider_input.py</dependency>
+    <dependency type="executable" location="extensions">inkstitch.py</dependency>
     <dependency type="executable" location="extensions">inkex.py</dependency>
     <input>
         <extension>.shv</extension>
@@ -10,7 +10,8 @@
         <_filetypename>Ink/Stitch: Husqvarna Viking Embroidery Format (.shv)</_filetypename>
         <_filetypetooltip>convert SHV file to Ink/Stitch manual-stitch paths</_filetypetooltip>
     </input>
+    <param name="extension" type="string" gui-hidden="true">input</param>
     <script>
-        <command reldir="extensions" interpreter="python">embroider_input.py</command>
+        <command reldir="extensions" interpreter="python">inkstitch.py</command>
     </script>
 </inkscape-extension>
diff --git a/inx/embroider_input_SST.inx b/inx/inkstitch_input_SST.inx
index 61f7c782..85533659 100644
--- a/inx/embroider_input_SST.inx
+++ b/inx/inkstitch_input_SST.inx
@@ -2,7 +2,7 @@
 <inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
     <_name>SST file input</_name>
     <id>org.inkstitch.input.sst</id>
-    <dependency type="executable" location="extensions">embroider_input.py</dependency>
+    <dependency type="executable" location="extensions">inkstitch.py</dependency>
     <dependency type="executable" location="extensions">inkex.py</dependency>
     <input>
         <extension>.sst</extension>
@@ -10,7 +10,8 @@
         <_filetypename>Ink/Stitch: Sunstar Embroidery Format (.sst)</_filetypename>
         <_filetypetooltip>convert SST file to Ink/Stitch manual-stitch paths</_filetypetooltip>
     </input>
+    <param name="extension" type="string" gui-hidden="true">input</param>
     <script>
-        <command reldir="extensions" interpreter="python">embroider_input.py</command>
+        <command reldir="extensions" interpreter="python">inkstitch.py</command>
     </script>
 </inkscape-extension>
diff --git a/inx/embroider_input_STX.inx b/inx/inkstitch_input_STX.inx
index 5043d6f2..3f1a3065 100644
--- a/inx/embroider_input_STX.inx
+++ b/inx/inkstitch_input_STX.inx
@@ -2,7 +2,7 @@
 <inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
     <_name>STX file input</_name>
     <id>org.inkstitch.input.stx</id>
-    <dependency type="executable" location="extensions">embroider_input.py</dependency>
+    <dependency type="executable" location="extensions">inkstitch.py</dependency>
     <dependency type="executable" location="extensions">inkex.py</dependency>
     <input>
         <extension>.stx</extension>
@@ -10,7 +10,8 @@
         <_filetypename>Ink/Stitch: Data Stitch Embroidery Format (.stx)</_filetypename>
         <_filetypetooltip>convert STX file to Ink/Stitch manual-stitch paths</_filetypetooltip>
     </input>
+    <param name="extension" type="string" gui-hidden="true">input</param>
     <script>
-        <command reldir="extensions" interpreter="python">embroider_input.py</command>
+        <command reldir="extensions" interpreter="python">inkstitch.py</command>
     </script>
 </inkscape-extension>
diff --git a/inx/embroider_input_T09.inx b/inx/inkstitch_input_T09.inx
index 5c64541d..eb6ab6d9 100644
--- a/inx/embroider_input_T09.inx
+++ b/inx/inkstitch_input_T09.inx
@@ -2,7 +2,7 @@
 <inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
     <_name>T09 file input</_name>
     <id>org.inkstitch.input.t09</id>
-    <dependency type="executable" location="extensions">embroider_input.py</dependency>
+    <dependency type="executable" location="extensions">inkstitch.py</dependency>
     <dependency type="executable" location="extensions">inkex.py</dependency>
     <input>
         <extension>.t09</extension>
@@ -10,7 +10,8 @@
         <_filetypename>Ink/Stitch: Pfaff Embroidery Format (.t09)</_filetypename>
         <_filetypetooltip>convert T09 file to Ink/Stitch manual-stitch paths</_filetypetooltip>
     </input>
+    <param name="extension" type="string" gui-hidden="true">input</param>
     <script>
-        <command reldir="extensions" interpreter="python">embroider_input.py</command>
+        <command reldir="extensions" interpreter="python">inkstitch.py</command>
     </script>
 </inkscape-extension>
diff --git a/inx/embroider_input_TAP.inx b/inx/inkstitch_input_TAP.inx
index 496105e2..bf299130 100644
--- a/inx/embroider_input_TAP.inx
+++ b/inx/inkstitch_input_TAP.inx
@@ -2,7 +2,7 @@
 <inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
     <_name>TAP file input</_name>
     <id>org.inkstitch.input.tap</id>
-    <dependency type="executable" location="extensions">embroider_input.py</dependency>
+    <dependency type="executable" location="extensions">inkstitch.py</dependency>
     <dependency type="executable" location="extensions">inkex.py</dependency>
     <input>
         <extension>.tap</extension>
@@ -10,7 +10,8 @@
         <_filetypename>Ink/Stitch: Happy Embroidery Format (.tap)</_filetypename>
         <_filetypetooltip>convert TAP file to Ink/Stitch manual-stitch paths</_filetypetooltip>
     </input>
+    <param name="extension" type="string" gui-hidden="true">input</param>
     <script>
-        <command reldir="extensions" interpreter="python">embroider_input.py</command>
+        <command reldir="extensions" interpreter="python">inkstitch.py</command>
     </script>
 </inkscape-extension>
diff --git a/inx/embroider_input_THR.inx b/inx/inkstitch_input_THR.inx
index d01d6184..e6a6e09e 100644
--- a/inx/embroider_input_THR.inx
+++ b/inx/inkstitch_input_THR.inx
@@ -2,7 +2,7 @@
 <inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
     <_name>THR file input</_name>
     <id>org.inkstitch.input.thr</id>
-    <dependency type="executable" location="extensions">embroider_input.py</dependency>
+    <dependency type="executable" location="extensions">inkstitch.py</dependency>
     <dependency type="executable" location="extensions">inkex.py</dependency>
     <input>
         <extension>.thr</extension>
@@ -10,7 +10,8 @@
         <_filetypename>Ink/Stitch: ThredWorks Embroidery Format (.thr)</_filetypename>
         <_filetypetooltip>convert THR file to Ink/Stitch manual-stitch paths</_filetypetooltip>
     </input>
+    <param name="extension" type="string" gui-hidden="true">input</param>
     <script>
-        <command reldir="extensions" interpreter="python">embroider_input.py</command>
+        <command reldir="extensions" interpreter="python">inkstitch.py</command>
     </script>
 </inkscape-extension>
diff --git a/inx/embroider_input_U00.inx b/inx/inkstitch_input_U00.inx
index a98ddaa1..b28da66d 100644
--- a/inx/embroider_input_U00.inx
+++ b/inx/inkstitch_input_U00.inx
@@ -2,7 +2,7 @@
 <inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
     <_name>U00 file input</_name>
     <id>org.inkstitch.input.u00</id>
-    <dependency type="executable" location="extensions">embroider_input.py</dependency>
+    <dependency type="executable" location="extensions">inkstitch.py</dependency>
     <dependency type="executable" location="extensions">inkex.py</dependency>
     <input>
         <extension>.u00</extension>
@@ -10,7 +10,8 @@
         <_filetypename>Ink/Stitch: Barudan Embroidery Format (.u00)</_filetypename>
         <_filetypetooltip>convert U00 file to Ink/Stitch manual-stitch paths</_filetypetooltip>
     </input>
+    <param name="extension" type="string" gui-hidden="true">input</param>
     <script>
-        <command reldir="extensions" interpreter="python">embroider_input.py</command>
+        <command reldir="extensions" interpreter="python">inkstitch.py</command>
     </script>
 </inkscape-extension>
diff --git a/inx/embroider_input_VIP.inx b/inx/inkstitch_input_VIP.inx
index f607bfd7..3723285c 100644
--- a/inx/embroider_input_VIP.inx
+++ b/inx/inkstitch_input_VIP.inx
@@ -2,7 +2,7 @@
 <inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
     <_name>VIP file input</_name>
     <id>org.inkstitch.input.vip</id>
-    <dependency type="executable" location="extensions">embroider_input.py</dependency>
+    <dependency type="executable" location="extensions">inkstitch.py</dependency>
     <dependency type="executable" location="extensions">inkex.py</dependency>
     <input>
         <extension>.vip</extension>
@@ -10,7 +10,8 @@
         <_filetypename>Ink/Stitch: Pfaff Embroidery Format (.vip)</_filetypename>
         <_filetypetooltip>convert VIP file to Ink/Stitch manual-stitch paths</_filetypetooltip>
     </input>
+    <param name="extension" type="string" gui-hidden="true">input</param>
     <script>
-        <command reldir="extensions" interpreter="python">embroider_input.py</command>
+        <command reldir="extensions" interpreter="python">inkstitch.py</command>
     </script>
 </inkscape-extension>
diff --git a/inx/embroider_input_VP3.inx b/inx/inkstitch_input_VP3.inx
index cb24f60a..b39f630a 100644
--- a/inx/embroider_input_VP3.inx
+++ b/inx/inkstitch_input_VP3.inx
@@ -2,7 +2,7 @@
 <inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
     <_name>VP3 file input</_name>
     <id>org.inkstitch.input.vp3</id>
-    <dependency type="executable" location="extensions">embroider_input.py</dependency>
+    <dependency type="executable" location="extensions">inkstitch.py</dependency>
     <dependency type="executable" location="extensions">inkex.py</dependency>
     <input>
         <extension>.vp3</extension>
@@ -10,7 +10,8 @@
         <_filetypename>Ink/Stitch: Pfaff Embroidery Format (.vp3)</_filetypename>
         <_filetypetooltip>convert VP3 file to Ink/Stitch manual-stitch paths</_filetypetooltip>
     </input>
+    <param name="extension" type="string" gui-hidden="true">input</param>
     <script>
-        <command reldir="extensions" interpreter="python">embroider_input.py</command>
+        <command reldir="extensions" interpreter="python">inkstitch.py</command>
     </script>
 </inkscape-extension>
diff --git a/inx/embroider_input_XXX.inx b/inx/inkstitch_input_XXX.inx
index 64093628..6e8e501e 100644
--- a/inx/embroider_input_XXX.inx
+++ b/inx/inkstitch_input_XXX.inx
@@ -2,7 +2,7 @@
 <inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
     <_name>XXX file input</_name>
     <id>org.inkstitch.input.xxx</id>
-    <dependency type="executable" location="extensions">embroider_input.py</dependency>
+    <dependency type="executable" location="extensions">inkstitch.py</dependency>
     <dependency type="executable" location="extensions">inkex.py</dependency>
     <input>
         <extension>.xxx</extension>
@@ -10,7 +10,8 @@
         <_filetypename>Ink/Stitch: Singer Embroidery Format (.xxx)</_filetypename>
         <_filetypetooltip>convert XXX file to Ink/Stitch manual-stitch paths</_filetypetooltip>
     </input>
+    <param name="extension" type="string" gui-hidden="true">input</param>
     <script>
-        <command reldir="extensions" interpreter="python">embroider_input.py</command>
+        <command reldir="extensions" interpreter="python">inkstitch.py</command>
     </script>
 </inkscape-extension>
diff --git a/inx/embroider_input_ZSK.inx b/inx/inkstitch_input_ZSK.inx
index badb36da..4178126f 100644
--- a/inx/embroider_input_ZSK.inx
+++ b/inx/inkstitch_input_ZSK.inx
@@ -2,7 +2,7 @@
 <inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
     <_name>ZSK file input</_name>
     <id>org.inkstitch.input.zsk</id>
-    <dependency type="executable" location="extensions">embroider_input.py</dependency>
+    <dependency type="executable" location="extensions">inkstitch.py</dependency>
     <dependency type="executable" location="extensions">inkex.py</dependency>
     <input>
         <extension>.zsk</extension>
@@ -10,7 +10,8 @@
         <_filetypename>Ink/Stitch: ZSK USA Embroidery Format (.zsk)</_filetypename>
         <_filetypetooltip>convert ZSK file to Ink/Stitch manual-stitch paths</_filetypetooltip>
     </input>
+    <param name="extension" type="string" gui-hidden="true">input</param>
     <script>
-        <command reldir="extensions" interpreter="python">embroider_input.py</command>
+        <command reldir="extensions" interpreter="python">inkstitch.py</command>
     </script>
 </inkscape-extension>
diff --git a/inx/embroider_palettes.inx b/inx/inkstitch_palettes.inx
index 47ff6cf3..5daa3196 100644
--- a/inx/embroider_palettes.inx
+++ b/inx/inkstitch_palettes.inx
@@ -2,8 +2,9 @@
 <inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
     <_name>Install thread manufacturer color palettes</_name>
     <id>org.inkstitch.palettes</id>
-    <dependency type="executable" location="extensions">embroider_palettes.py</dependency>
+    <dependency type="executable" location="extensions">inkstitch.py</dependency>
     <dependency type="executable" location="extensions">inkex.py</dependency>
+    <param name="extension" type="string" gui-hidden="true">palettes</param>
     <effect>
         <object-type>all</object-type>
         <effects-menu>
@@ -11,6 +12,6 @@
         </effects-menu>
     </effect>
     <script>
-        <command reldir="extensions" interpreter="python">embroider_palettes.py</command>
+        <command reldir="extensions" interpreter="python">inkstitch.py</command>
     </script>
 </inkscape-extension>
diff --git a/inx/embroider_params.inx b/inx/inkstitch_params.inx
index f3987502..7b3b4e63 100644
--- a/inx/embroider_params.inx
+++ b/inx/inkstitch_params.inx
@@ -2,8 +2,9 @@
 <inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
     <_name>Params</_name>
     <id>jonh.embroider.params</id>
-    <dependency type="executable" location="extensions">embroider_params.py</dependency>
+    <dependency type="executable" location="extensions">inkstitch.py</dependency>
     <dependency type="executable" location="extensions">inkex.py</dependency>
+    <param name="extension" type="string" gui-hidden="true">params</param>
     <effect>
         <object-type>all</object-type>
         <effects-menu>
@@ -11,6 +12,6 @@
         </effects-menu>
     </effect>
     <script>
-        <command reldir="extensions" interpreter="python">embroider_params.py</command>
+        <command reldir="extensions" interpreter="python">inkstitch.py</command>
     </script>
 </inkscape-extension>
diff --git a/inx/embroider_print.inx b/inx/inkstitch_print.inx
index cbba82cc..edc96a4c 100644
--- a/inx/embroider_print.inx
+++ b/inx/inkstitch_print.inx
@@ -2,8 +2,9 @@
 <inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
     <_name>Print</_name>
     <id>jonh.embroider.print</id>
-    <dependency type="executable" location="extensions">embroider_print.py</dependency>
+    <dependency type="executable" location="extensions">inkstitch.py</dependency>
     <dependency type="executable" location="extensions">inkex.py</dependency>
+    <param name="extension" type="string" gui-hidden="true">print</param>
     <effect>
         <object-type>all</object-type>
         <effects-menu>
@@ -11,6 +12,6 @@
         </effects-menu>
     </effect>
     <script>
-        <command reldir="extensions" interpreter="python">embroider_print.py</command>
+        <command reldir="extensions" interpreter="python">inkstitch.py</command>
     </script>
 </inkscape-extension>
diff --git a/inx/embroider_simulate.inx b/inx/inkstitch_simulate.inx
index 9c38ec97..66f892d8 100644
--- a/inx/embroider_simulate.inx
+++ b/inx/inkstitch_simulate.inx
@@ -2,9 +2,9 @@
 <inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
     <_name>Simulate</_name>
     <id>jonh.embroider.simulate</id>
-    <dependency type="executable" location="extensions">embroider_simulate.py</dependency>
+    <dependency type="executable" location="extensions">inkstitch.py</dependency>
     <dependency type="executable" location="extensions">inkex.py</dependency>
-    <param name="path" type="string" _gui-text="Directory where embroidery output is stored"></param>
+    <param name="extension" type="string" gui-hidden="true">simulate</param>
     <effect>
         <object-type>all</object-type>
         <effects-menu>
@@ -12,6 +12,6 @@
         </effects-menu>
     </effect>
     <script>
-        <command reldir="extensions" interpreter="python">embroider_simulate.py</command>
+        <command reldir="extensions" interpreter="python">inkstitch.py</command>
     </script>
 </inkscape-extension>
diff --git a/lib/__init__.py b/lib/__init__.py
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/lib/__init__.py
diff --git a/inkstitch/elements/__init__.py b/lib/elements/__init__.py
index 7e05e19c..7e05e19c 100644
--- a/inkstitch/elements/__init__.py
+++ b/lib/elements/__init__.py
diff --git a/inkstitch/elements/auto_fill.py b/lib/elements/auto_fill.py
index 6eb1f10c..08ae67f7 100644
--- a/inkstitch/elements/auto_fill.py
+++ b/lib/elements/auto_fill.py
@@ -1,10 +1,10 @@
 import math
-from .. import _
-from .element import param, Patch
-from ..utils import cache
-from .fill import Fill
 from shapely import geometry as shgeo
+from ..i18n import _
+from ..utils import cache
 from ..stitches import auto_fill
+from .element import param, Patch
+from .fill import Fill
 
 
 class AutoFill(Fill):
diff --git a/inkstitch/elements/element.py b/lib/elements/element.py
index cfca3782..300136dd 100644
--- a/inkstitch/elements/element.py
+++ b/lib/elements/element.py
@@ -1,9 +1,10 @@
 import sys
 from copy import deepcopy
+from shapely import geometry as shgeo
 
+from ..i18n import _
 from ..utils import cache
-from shapely import geometry as shgeo
-from .. import _, PIXELS_PER_MM, get_viewbox_transform, get_stroke_scale, convert_length
+from ..svg import PIXELS_PER_MM, get_viewbox_transform, convert_length, get_doc_size
 
 # inkscape-provided utilities
 import simpletransform
@@ -11,6 +12,7 @@ import simplestyle
 import cubicsuperpath
 from cspsubdiv import cspsubdiv
 
+
 class Patch:
     """A raw collection of stitches with attached instructions."""
 
@@ -146,6 +148,15 @@ class EmbroideryElement(object):
 
     @property
     @cache
+    def stroke_scale(self):
+        svg = self.node.getroottree().getroot()
+        doc_width, doc_height = get_doc_size(svg)
+        viewbox = svg.get('viewBox', '0 0 %s %s' % (doc_width, doc_height))
+        viewbox = viewbox.strip().replace(',', ' ').split()
+        return  doc_width / float(viewbox[2])
+
+    @property
+    @cache
     def stroke_width(self):
         width = self.get_style("stroke-width")
 
@@ -153,8 +164,7 @@ class EmbroideryElement(object):
             return 1.0
 
         width = convert_length(width)
-
-        return width * get_stroke_scale(self.node.getroottree().getroot())
+        return width * self.stroke_scale
 
     @property
     def path(self):
diff --git a/inkstitch/elements/fill.py b/lib/elements/fill.py
index a74a897d..52a42260 100644
--- a/inkstitch/elements/fill.py
+++ b/lib/elements/fill.py
@@ -1,10 +1,13 @@
-from .. import _, PIXELS_PER_MM
-from .element import param, EmbroideryElement, Patch
-from ..utils import cache
 from shapely import geometry as shgeo
 import math
+
+from .element import param, EmbroideryElement, Patch
+from ..i18n import _
+from ..svg import PIXELS_PER_MM
+from ..utils import cache
 from ..stitches import running_stitch, auto_fill, legacy_fill
 
+
 class Fill(EmbroideryElement):
     element_name = _("Fill")
 
diff --git a/inkstitch/elements/polyline.py b/lib/elements/polyline.py
index 6ded9fd1..5c474237 100644
--- a/inkstitch/elements/polyline.py
+++ b/lib/elements/polyline.py
@@ -1,5 +1,6 @@
-from .. import _, Point
 from .element import param, EmbroideryElement, Patch
+from ..i18n import _
+from ..utils.geometry import Point
 from ..utils import cache
 
 
diff --git a/inkstitch/elements/satin_column.py b/lib/elements/satin_column.py
index d22f5145..3593db64 100644
--- a/inkstitch/elements/satin_column.py
+++ b/lib/elements/satin_column.py
@@ -1,9 +1,9 @@
 from itertools import chain, izip
+from shapely import geometry as shgeo, ops as shops
 
-from .. import _, Point
 from .element import param, EmbroideryElement, Patch
-from ..utils import cache
-from shapely import geometry as shgeo, ops as shops
+from ..i18n import _
+from ..utils import cache, Point
 
 
 class SatinColumn(EmbroideryElement):
diff --git a/inkstitch/elements/stroke.py b/lib/elements/stroke.py
index 360e3744..48662b6d 100644
--- a/inkstitch/elements/stroke.py
+++ b/lib/elements/stroke.py
@@ -1,7 +1,8 @@
 import sys
-from .. import _, Point
+
 from .element import param, EmbroideryElement, Patch
-from ..utils import cache
+from ..i18n import _
+from ..utils import cache, Point
 
 
 warned_about_legacy_running_stitch = False
diff --git a/lib/extensions/__init__.py b/lib/extensions/__init__.py
new file mode 100644
index 00000000..ebdd2fc9
--- /dev/null
+++ b/lib/extensions/__init__.py
@@ -0,0 +1,6 @@
+from embroider import Embroider
+from palettes import Palettes
+from params import Params
+from print_pdf import Print
+from simulate import Simulate
+from input import Input
diff --git a/inkstitch/extensions.py b/lib/extensions/base.py
index c02cc579..ff587ca5 100644
--- a/inkstitch/extensions.py
+++ b/lib/extensions/base.py
@@ -3,9 +3,10 @@ import re
 import json
 from copy import deepcopy
 from collections import MutableMapping
-from .elements import AutoFill, Fill, Stroke, SatinColumn, Polyline, EmbroideryElement
-from . import SVG_POLYLINE_TAG, SVG_GROUP_TAG, SVG_DEFS_TAG, INKSCAPE_GROUPMODE, EMBROIDERABLE_TAGS, PIXELS_PER_MM
-from .utils import cache
+
+from ..svg.tags import *
+from ..elements import AutoFill, Fill, Stroke, SatinColumn, Polyline, EmbroideryElement
+from ..utils import cache
 
 
 SVG_METADATA_TAG = inkex.addNS("metadata", "svg")
diff --git a/embroider.py b/lib/extensions/embroider.py
index 8c5d135b..a213be64 100644
--- a/embroider.py
+++ b/lib/extensions/embroider.py
@@ -1,26 +1,13 @@
-#!/usr/bin/python
-#
-# Important resources:
-# lxml interface for walking SVG tree:
-# http://codespeak.net/lxml/tutorial.html#elementpath
-# Inkscape library for extracting paths from SVG:
-# http://wiki.inkscape.org/wiki/index.php/Python_modules_for_extensions#simplepath.py
-# Shapely computational geometry library:
-# http://gispython.org/shapely/manual.html#multipolygons
-# Embroidery file format documentation:
-# http://www.achatina.de/sewing/main/TECHNICL.HTM
-
 import sys
 import traceback
-sys.path.append("/usr/share/inkscape/extensions")
 import os
-
 import inkex
-import inkstitch
-from inkstitch import _, PIXELS_PER_MM
-from inkstitch.extensions import InkstitchExtension
-from inkstitch.stitch_plan import patches_to_stitch_plan
-from inkstitch.svg import render_stitch_plan
+
+from .base import InkstitchExtension
+from ..i18n import _
+from ..output import write_embroidery_file
+from ..stitch_plan import patches_to_stitch_plan
+from ..svg import render_stitch_plan, PIXELS_PER_MM
 
 
 class Embroider(InkstitchExtension):
@@ -96,17 +83,5 @@ class Embroider(InkstitchExtension):
 
         patches = self.elements_to_patches(self.elements)
         stitch_plan = patches_to_stitch_plan(patches, self.options.collapse_length_mm * PIXELS_PER_MM)
-        inkstitch.write_embroidery_file(self.get_output_path(), stitch_plan, self.document.getroot())
+        write_embroidery_file(self.get_output_path(), stitch_plan, self.document.getroot())
         render_stitch_plan(self.document.getroot(), stitch_plan)
-
-
-if __name__ == '__main__':
-    sys.setrecursionlimit(100000)
-    e = Embroider()
-
-    try:
-        e.affect()
-    except KeyboardInterrupt:
-        # for use at the command prompt for debugging
-        print >> sys.stderr, "interrupted!"
-        print >> sys.stderr, traceback.format_exc()
diff --git a/lib/extensions/input.py b/lib/extensions/input.py
new file mode 100644
index 00000000..f8bf5a5d
--- /dev/null
+++ b/lib/extensions/input.py
@@ -0,0 +1,68 @@
+import os
+from os.path import realpath, dirname, join as path_join
+import sys
+from inkex import etree
+import inkex
+
+# help python find libembroidery when running in a local repo clone
+if getattr(sys, 'frozen', None) is None:
+    sys.path.append(realpath(path_join(dirname(__file__), '..', '..')))
+
+from libembroidery import *
+
+from ..svg import PIXELS_PER_MM, render_stitch_plan
+from ..svg.tags import INKSCAPE_LABEL
+from ..i18n import _
+from ..stitch_plan import StitchPlan
+
+
+class Input(object):
+    def pattern_stitches(self, pattern):
+        stitch_pointer = pattern.stitchList
+        while stitch_pointer:
+            yield stitch_pointer.stitch
+            stitch_pointer = stitch_pointer.next
+
+
+    def affect(self, args):
+        embroidery_file = args[0]
+        pattern = embPattern_create()
+        embPattern_read(pattern, embroidery_file)
+        embPattern_flipVertical(pattern)
+
+        stitch_plan = StitchPlan()
+        color_block = None
+        current_color = None
+
+        for stitch in self.pattern_stitches(pattern):
+            if stitch.color != current_color:
+                thread = embThreadList_getAt(pattern.threadList, stitch.color)
+                color = thread.color
+                color_block = stitch_plan.new_color_block((color.r, color.g, color.b))
+                current_color = stitch.color
+
+            if not stitch.flags & END:
+                color_block.add_stitch(stitch.xx * PIXELS_PER_MM, stitch.yy * PIXELS_PER_MM,
+                                       jump=stitch.flags & JUMP,
+                                       stop=stitch.flags & STOP,
+                                       trim=stitch.flags & TRIM)
+
+        extents = stitch_plan.extents
+        svg = etree.Element("svg", nsmap=inkex.NSS, attrib=
+                            {
+                                "width": str(extents[0] * 2),
+                                "height": str(extents[1] * 2),
+                                "viewBox": "0 0 %s %s" % (extents[0] * 2, extents[1] * 2),
+                            })
+        render_stitch_plan(svg, stitch_plan)
+
+        # rename the Stitch Plan layer so that it doesn't get overwritten by Embroider
+        layer = svg.find(".//*[@id='__inkstitch_stitch_plan__']")
+        layer.set(INKSCAPE_LABEL, os.path.basename(embroidery_file))
+        layer.attrib.pop('id')
+
+        # Shift the design so that its origin is at the center of the canvas
+        # Note: this is NOT the same as centering the design in the canvas!
+        layer.set('transform', 'translate(%s,%s)' % (extents[0], extents[1]))
+
+        print etree.tostring(svg)
diff --git a/embroider_palettes.py b/lib/extensions/palettes.py
index a3b59834..f7a6c7a5 100644
--- a/embroider_palettes.py
+++ b/lib/extensions/palettes.py
@@ -1,6 +1,3 @@
-#!/usr/bin/python
-#
-
 import sys
 import traceback
 import os
@@ -13,7 +10,8 @@ import time
 import logging
 import wx
 import inkex
-from inkstitch.utils import guess_inkscape_config_path
+
+from ..utils import guess_inkscape_config_path
 
 
 class InstallPalettesFrame(wx.Frame):
@@ -106,16 +104,9 @@ class InstallPalettesFrame(wx.Frame):
             for palette_file in files:
                 shutil.copy(palette_file, dest)
 
-class InstallPalettes(inkex.Effect):
+class Palettes(inkex.Effect):
     def effect(self):
         app = wx.App()
         installer_frame = InstallPalettesFrame(None, title=_("Ink/Stitch Thread Palette Installer"), size=(450, 200))
         installer_frame.Show()
         app.MainLoop()
-
-
-if __name__ == '__main__':
-    #save_stderr()
-    effect = InstallPalettes()
-    effect.affect()
-    #restore_stderr()
diff --git a/embroider_params.py b/lib/extensions/params.py
index 607dbb2a..03a6f3cc 100644
--- a/embroider_params.py
+++ b/lib/extensions/params.py
@@ -1,4 +1,3 @@
-#!/usr/bin/env python
 # -*- coding: UTF-8 -*-
 
 import os
@@ -11,15 +10,15 @@ from copy import copy
 import wx
 from wx.lib.scrolledpanel import ScrolledPanel
 from collections import defaultdict
-import inkstitch
 from functools import partial
 from itertools import groupby
-from inkstitch import _
-from inkstitch.extensions import InkstitchExtension
-from inkstitch.stitch_plan import patches_to_stitch_plan
-from inkstitch.elements import EmbroideryElement, Fill, AutoFill, Stroke, SatinColumn
-from inkstitch.utils import save_stderr, restore_stderr
-from embroider_simulate import EmbroiderySimulator
+
+from .base import InkstitchExtension
+from ..i18n import _
+from ..stitch_plan import patches_to_stitch_plan
+from ..elements import EmbroideryElement, Fill, AutoFill, Stroke, SatinColumn
+from ..utils import save_stderr, restore_stderr
+from ..simulator import EmbroiderySimulator
 
 
 def presets_path():
@@ -633,7 +632,7 @@ class SettingsFrame(wx.Frame):
         self.Layout()
         # end wxGlade
 
-class EmbroiderParams(InkstitchExtension):
+class Params(InkstitchExtension):
     def __init__(self, *args, **kwargs):
         self.cancelled = False
         InkstitchExtension.__init__(self, *args, **kwargs)
@@ -755,18 +754,3 @@ class EmbroiderParams(InkstitchExtension):
             # This prevents the superclass from outputting the SVG, because we
             # may have modified the DOM.
             sys.exit(0)
-
-
-# end of class MyFrame
-if __name__ == "__main__":
-    save_stderr()
-
-    try:
-        e = EmbroiderParams()
-        e.affect()
-    except SystemExit:
-        raise
-    except:
-        traceback.print_exc()
-
-    restore_stderr()
diff --git a/embroider_print.py b/lib/extensions/print_pdf.py
index 5895bc51..baeb7eba 100644
--- a/embroider_print.py
+++ b/lib/extensions/print_pdf.py
@@ -1,6 +1,3 @@
-#!/usr/bin/python
-#
-
 import sys
 import traceback
 import os
@@ -13,24 +10,21 @@ from copy import deepcopy
 import wx
 import appdirs
 import json
-
 import inkex
-import inkstitch
-from inkstitch import _, PIXELS_PER_MM, SVG_GROUP_TAG
-from inkstitch.extensions import InkstitchExtension
-from inkstitch.stitch_plan import patches_to_stitch_plan
-from inkstitch.svg import render_stitch_plan
-from inkstitch.utils import save_stderr, restore_stderr
-from inkstitch.threads import ThreadCatalog
-
 from jinja2 import Environment, FileSystemLoader, select_autoescape
 from datetime import date
 import base64
-
 from flask import Flask, request, Response, send_from_directory, jsonify
 import webbrowser
 import requests
 
+from .base import InkstitchExtension
+from ..i18n import _, translation as inkstitch_translation
+from ..svg import PIXELS_PER_MM, render_stitch_plan
+from ..svg.tags import SVG_GROUP_TAG
+from ..stitch_plan import patches_to_stitch_plan
+from ..threads import ThreadCatalog
+
 
 def datetimeformat(value, format='%Y/%m/%d'):
     return value.strftime(format)
@@ -111,7 +105,7 @@ class PrintPreviewServer(Thread):
         if getattr(sys, 'frozen', False):
             self.resources_path = os.path.join(sys._MEIPASS, 'print', 'resources')
         else:
-            self.resources_path = os.path.join(os.path.dirname(os.path.realpath(__file__)), 'print', 'resources')
+            self.resources_path = os.path.realpath(os.path.join(os.path.dirname(__file__), '..', '..', 'print', 'resources'))
 
     def __setup_app(self):
         self.__set_resources_path()
@@ -288,7 +282,7 @@ class Print(InkstitchExtension):
         if getattr( sys, 'frozen', False ) :
             template_dir = os.path.join(sys._MEIPASS, "print", "templates")
         else:
-            template_dir = os.path.join(os.path.dirname(os.path.realpath(__file__)), "print", "templates")
+            template_dir = os.path.realpath(os.path.join(os.path.dirname(__file__), "..", "..", "print", "templates"))
 
         env = Environment(
             loader = FileSystemLoader(template_dir),
@@ -297,7 +291,7 @@ class Print(InkstitchExtension):
         )
 
         env.filters['datetimeformat'] = datetimeformat
-        env.install_gettext_translations(inkstitch.translation)
+        env.install_gettext_translations(inkstitch_translation)
 
         return env
 
@@ -394,21 +388,3 @@ class Print(InkstitchExtension):
         info_frame = PrintInfoFrame(None, title=_("Ink/Stitch Print"), size=(450, 350), print_server=print_server)
         info_frame.Show()
         app.MainLoop()
-
-
-if __name__ == '__main__':
-    exception = None
-
-    save_stderr()
-    try:
-        effect = Print()
-        effect.affect()
-    except:
-        exception = traceback.format_exc()
-    restore_stderr()
-
-    if exception:
-        print >> sys.stderr, exception
-        sys.exit(1)
-    else:
-        sys.exit(0)
diff --git a/lib/extensions/simulate.py b/lib/extensions/simulate.py
new file mode 100644
index 00000000..0c372d4d
--- /dev/null
+++ b/lib/extensions/simulate.py
@@ -0,0 +1,28 @@
+import wx
+
+from .base import InkstitchExtension
+from ..i18n import _
+from ..simulator import EmbroiderySimulator
+from ..stitch_plan import patches_to_stitch_plan
+
+
+class Simulate(InkstitchExtension):
+    def __init__(self):
+        InkstitchExtension.__init__(self)
+        self.OptionParser.add_option("-P", "--path",
+                                     action="store", type="string",
+                                     dest="path", default=".",
+                                     help="Directory in which to store output file")
+
+    def effect(self):
+        if not self.get_elements():
+            return
+
+        patches = self.elements_to_patches(self.elements)
+        stitch_plan = patches_to_stitch_plan(patches)
+        app = wx.App()
+        frame = EmbroiderySimulator(None, -1, _("Embroidery Simulation"), wx.DefaultPosition, size=(1000, 1000), stitch_plan=stitch_plan)
+        app.SetTopWindow(frame)
+        frame.Show()
+        wx.CallAfter(frame.go)
+        app.MainLoop()
diff --git a/lib/i18n.py b/lib/i18n.py
new file mode 100644
index 00000000..d20f5d2f
--- /dev/null
+++ b/lib/i18n.py
@@ -0,0 +1,21 @@
+import sys
+import os
+import gettext
+
+_ = translation = None
+
+def localize():
+    if getattr(sys, 'frozen', False):
+        # we are in a pyinstaller installation
+        locale_dir = sys._MEIPASS
+    else:
+        locale_dir = os.path.dirname(__file__)
+
+    locale_dir = os.path.join(locale_dir, 'locales')
+
+    global translation, _
+
+    translation = gettext.translation("inkstitch", locale_dir, fallback=True)
+    _ = translation.gettext
+
+localize()
diff --git a/lib/output.py b/lib/output.py
new file mode 100644
index 00000000..b94d7387
--- /dev/null
+++ b/lib/output.py
@@ -0,0 +1,131 @@
+import libembroidery
+import inkex
+import simpletransform
+import shapely.geometry as shgeo
+
+from .utils import Point
+from .svg import PIXELS_PER_MM, get_doc_size, get_viewbox_transform
+
+
+def make_thread(color):
+    thread = libembroidery.EmbThread()
+    thread.color = libembroidery.embColor_make(*color.rgb)
+
+    thread.description = color.name
+    thread.catalogNumber = ""
+
+    return thread
+
+def add_thread(pattern, thread):
+    """Add a thread to a pattern and return the thread's index"""
+
+    libembroidery.embPattern_addThread(pattern, thread)
+
+    return libembroidery.embThreadList_count(pattern.threadList) - 1
+
+def get_flags(stitch):
+    flags = 0
+
+    if stitch.jump:
+        flags |= libembroidery.JUMP
+
+    if stitch.trim:
+        flags |= libembroidery.TRIM
+
+    if stitch.stop:
+        flags |= libembroidery.STOP
+
+    return flags
+
+
+def _string_to_floats(string):
+    floats = string.split(',')
+    return [float(num) for num in floats]
+
+
+def get_origin(svg):
+    # The user can specify the embroidery origin by defining two guides
+    # named "embroidery origin" that intersect.
+
+    namedview = svg.find(inkex.addNS('namedview', 'sodipodi'))
+    all_guides = namedview.findall(inkex.addNS('guide', 'sodipodi'))
+    label_attribute = inkex.addNS('label', 'inkscape')
+    guides = [guide for guide in all_guides
+                    if guide.get(label_attribute, "").startswith("embroidery origin")]
+
+    # document size used below
+    doc_size = list(get_doc_size(svg))
+
+    # convert the size from viewbox-relative to real-world pixels
+    viewbox_transform = get_viewbox_transform(svg)
+    simpletransform.applyTransformToPoint(simpletransform.invertTransform(viewbox_transform), doc_size)
+
+    default = [doc_size[0] / 2.0, doc_size[1] / 2.0]
+    simpletransform.applyTransformToPoint(viewbox_transform, default)
+    default = Point(*default)
+
+    if len(guides) < 2:
+        return default
+
+    # Find out where the guides intersect.  Only pay attention to the first two.
+    guides = guides[:2]
+
+    lines = []
+    for guide in guides:
+        # inkscape's Y axis is reversed from SVG's, and the guide is in inkscape coordinates
+        position = Point(*_string_to_floats(guide.get('position')))
+        position.y = doc_size[1] - position.y
+
+
+        # This one baffles me.  I think inkscape might have gotten the order of
+        # their vector wrong?
+        parts = _string_to_floats(guide.get('orientation'))
+        direction = Point(parts[1], parts[0])
+
+        # We have a theoretically infinite line defined by a point on the line
+        # and a vector direction.  Shapely can only deal in concrete line
+        # segments, so we'll pick points really far in either direction on the
+        # line and call it good enough.
+        lines.append(shgeo.LineString((position + 100000 * direction, position - 100000 * direction)))
+
+    intersection = lines[0].intersection(lines[1])
+
+    if isinstance(intersection, shgeo.Point):
+        origin = [intersection.x, intersection.y]
+        simpletransform.applyTransformToPoint(viewbox_transform, origin)
+        return Point(*origin)
+    else:
+        # Either the two guides are the same line, or they're parallel.
+        return default
+
+
+def write_embroidery_file(file_path, stitch_plan, svg):
+    origin = get_origin(svg)
+
+    pattern = libembroidery.embPattern_create()
+
+    for color_block in stitch_plan:
+        add_thread(pattern, make_thread(color_block.color))
+
+        for stitch in color_block:
+            if stitch.stop and stitch is not color_block.last_stitch:
+                # A STOP stitch that is not at the end of a color block
+                # occurs when the user specified "STOP after".  "STOP" is the
+                # same thing as a color change, and the user will assign a
+                # special color at the machine that tells it to pause after.
+                # We need to add another copy of the same color here so that
+                # the stitches after the STOP are still the same color.
+                add_thread(pattern, make_thread(color_block.color))
+
+            flags = get_flags(stitch)
+            libembroidery.embPattern_addStitchAbs(pattern, stitch.x - origin.x, stitch.y - origin.y, flags, 1)
+
+    libembroidery.embPattern_addStitchAbs(pattern, stitch.x - origin.x, stitch.y - origin.y, libembroidery.END, 1)
+
+    # convert from pixels to millimeters
+    libembroidery.embPattern_scale(pattern, 1/PIXELS_PER_MM)
+
+    # SVG and embroidery disagree on the direction of the Y axis
+    libembroidery.embPattern_flipVertical(pattern)
+
+    libembroidery.embPattern_write(pattern, file_path)
diff --git a/embroider_simulate.py b/lib/simulator.py
index c7c3f6bd..c7e74353 100644
--- a/embroider_simulate.py
+++ b/lib/simulator.py
@@ -1,17 +1,10 @@
 import sys
-import os
 import numpy
 import wx
-import inkex
-import simplestyle
 import colorsys
 from itertools import izip
 
-import inkstitch
-from inkstitch.extensions import InkstitchExtension
-from inkstitch import PIXELS_PER_MM
-from inkstitch.stitch_plan import patches_to_stitch_plan
-from inkstitch.svg import color_block_to_point_lists
+from .svg import PIXELS_PER_MM, color_block_to_point_lists
 
 
 class EmbroiderySimulator(wx.Frame):
@@ -256,30 +249,3 @@ class EmbroiderySimulator(wx.Frame):
                 self.last_pos = (x2, y2)
             except IndexError:
                 self.timer.Stop()
-
-class SimulateEffect(InkstitchExtension):
-    def __init__(self):
-        InkstitchExtension.__init__(self)
-        self.OptionParser.add_option("-P", "--path",
-                                     action="store", type="string",
-                                     dest="path", default=".",
-                                     help="Directory in which to store output file")
-
-    def effect(self):
-        if not self.get_elements():
-            return
-
-        patches = self.elements_to_patches(self.elements)
-        stitch_plan = patches_to_stitch_plan(patches)
-        app = wx.App()
-        frame = EmbroiderySimulator(None, -1, _("Embroidery Simulation"), wx.DefaultPosition, size=(1000, 1000), stitch_plan=stitch_plan)
-        app.SetTopWindow(frame)
-        frame.Show()
-        wx.CallAfter(frame.go)
-        app.MainLoop()
-
-
-if __name__ == "__main__":
-    effect = SimulateEffect()
-    effect.affect()
-    sys.exit(0)
diff --git a/inkstitch/stitch_plan/__init__.py b/lib/stitch_plan/__init__.py
index 6c1f418a..791a5f20 100644
--- a/inkstitch/stitch_plan/__init__.py
+++ b/lib/stitch_plan/__init__.py
@@ -1 +1,2 @@
 from stitch_plan import patches_to_stitch_plan, StitchPlan, ColorBlock
+from .stitch import Stitch
diff --git a/lib/stitch_plan/stitch.py b/lib/stitch_plan/stitch.py
new file mode 100644
index 00000000..6a8579c2
--- /dev/null
+++ b/lib/stitch_plan/stitch.py
@@ -0,0 +1,15 @@
+from ..utils.geometry import Point
+
+
+class Stitch(Point):
+    def __init__(self, x, y, color=None, jump=False, stop=False, trim=False, no_ties=False):
+        self.x = x
+        self.y = y
+        self.color = color
+        self.jump = jump
+        self.trim = trim
+        self.stop = stop
+        self.no_ties = no_ties
+
+    def __repr__(self):
+        return "Stitch(%s, %s, %s, %s, %s, %s, %s)" % (self.x, self.y, self.color, "JUMP" if self.jump else " ", "TRIM" if self.trim else " ", "STOP" if self.stop else " ", "NO TIES" if self.no_ties else " ")
diff --git a/inkstitch/stitch_plan/stitch_plan.py b/lib/stitch_plan/stitch_plan.py
index fab87876..570a7645 100644
--- a/inkstitch/stitch_plan/stitch_plan.py
+++ b/lib/stitch_plan/stitch_plan.py
@@ -1,8 +1,9 @@
-from .. import Stitch, PIXELS_PER_MM
-from ..utils.geometry import Point
+from .stitch import Stitch
 from .stop import process_stop
 from .trim import process_trim
 from .ties import add_ties
+from ..svg import PIXELS_PER_MM
+from ..utils.geometry import Point
 from ..threads import ThreadColor
 
 
diff --git a/inkstitch/stitch_plan/stop.py b/lib/stitch_plan/stop.py
index c5e9f7e4..c5e9f7e4 100644
--- a/inkstitch/stitch_plan/stop.py
+++ b/lib/stitch_plan/stop.py
diff --git a/inkstitch/stitch_plan/ties.py b/lib/stitch_plan/ties.py
index 1207ea51..f9c5b721 100644
--- a/inkstitch/stitch_plan/ties.py
+++ b/lib/stitch_plan/ties.py
@@ -1,7 +1,9 @@
+from copy import deepcopy
+
+from .stitch import Stitch
 from ..utils import cut_path
 from ..stitches import running_stitch
-from .. import Stitch
-from copy import deepcopy
+
 
 def add_tie(stitches, tie_path):
     if stitches[-1].no_ties:
diff --git a/inkstitch/stitch_plan/trim.py b/lib/stitch_plan/trim.py
index f692a179..f692a179 100644
--- a/inkstitch/stitch_plan/trim.py
+++ b/lib/stitch_plan/trim.py
diff --git a/inkstitch/stitches/__init__.py b/lib/stitches/__init__.py
index d2ff0446..d2ff0446 100644
--- a/inkstitch/stitches/__init__.py
+++ b/lib/stitches/__init__.py
diff --git a/inkstitch/stitches/auto_fill.py b/lib/stitches/auto_fill.py
index 7f265909..518a2812 100644
--- a/inkstitch/stitches/auto_fill.py
+++ b/lib/stitches/auto_fill.py
@@ -1,5 +1,3 @@
-from fill import intersect_region_with_grating, row_num, stitch_row
-from .. import _, PIXELS_PER_MM, Point as InkstitchPoint
 import sys
 import shapely
 import networkx
@@ -7,6 +5,11 @@ import math
 from itertools import groupby
 from collections import deque
 
+from .fill import intersect_region_with_grating, row_num, stitch_row
+from ..i18n import _
+from ..svg import PIXELS_PER_MM
+from ..utils.geometry import Point as InkstitchPoint
+
 
 class MaxQueueLengthExceeded(Exception):
     pass
diff --git a/inkstitch/stitches/fill.py b/lib/stitches/fill.py
index 1b7377b0..14971cb4 100644
--- a/inkstitch/stitches/fill.py
+++ b/lib/stitches/fill.py
@@ -1,9 +1,10 @@
-from .. import PIXELS_PER_MM
-from ..utils import cache, Point as InkstitchPoint
 import shapely
 import math
 import sys
 
+from ..svg import PIXELS_PER_MM
+from ..utils import cache, Point as InkstitchPoint
+
 
 def legacy_fill(shape, angle, row_spacing, end_row_spacing, max_stitch_length, flip, staggers):
     rows_of_segments = intersect_region_with_grating(shape, angle, row_spacing, end_row_spacing, flip)
@@ -242,4 +243,3 @@ def pull_runs(rows, shape, row_spacing):
         count += 1
 
     return runs
-
diff --git a/inkstitch/stitches/running_stitch.py b/lib/stitches/running_stitch.py
index 81124339..81124339 100644
--- a/inkstitch/stitches/running_stitch.py
+++ b/lib/stitches/running_stitch.py
diff --git a/lib/svg/__init__.py b/lib/svg/__init__.py
new file mode 100644
index 00000000..1895bba4
--- /dev/null
+++ b/lib/svg/__init__.py
@@ -0,0 +1,2 @@
+from .svg import color_block_to_point_lists, render_stitch_plan
+from .units import *
diff --git a/inkstitch/svg.py b/lib/svg/svg.py
index 0728309b..3bc546e7 100644
--- a/inkstitch/svg.py
+++ b/lib/svg/svg.py
@@ -1,5 +1,10 @@
 import simpletransform, simplestyle, inkex
-from . import _, get_viewbox_transform, cache, SVG_GROUP_TAG, INKSCAPE_LABEL, INKSCAPE_GROUPMODE, SVG_PATH_TAG
+
+from .units import get_viewbox_transform
+from .tags import SVG_GROUP_TAG, INKSCAPE_LABEL, INKSCAPE_GROUPMODE, SVG_PATH_TAG
+from ..i18n import _
+from ..utils import cache
+
 
 def color_block_to_point_lists(color_block):
     point_lists = [[]]
diff --git a/lib/svg/tags.py b/lib/svg/tags.py
new file mode 100644
index 00000000..fee59957
--- /dev/null
+++ b/lib/svg/tags.py
@@ -0,0 +1,12 @@
+import inkex
+
+
+SVG_PATH_TAG = inkex.addNS('path', 'svg')
+SVG_POLYLINE_TAG = inkex.addNS('polyline', 'svg')
+SVG_DEFS_TAG = inkex.addNS('defs', 'svg')
+SVG_GROUP_TAG = inkex.addNS('g', 'svg')
+
+INKSCAPE_LABEL = inkex.addNS('label', 'inkscape')
+INKSCAPE_GROUPMODE = inkex.addNS('groupmode', 'inkscape')
+
+EMBROIDERABLE_TAGS = (SVG_PATH_TAG, SVG_POLYLINE_TAG)
diff --git a/lib/svg/units.py b/lib/svg/units.py
new file mode 100644
index 00000000..015da60e
--- /dev/null
+++ b/lib/svg/units.py
@@ -0,0 +1,105 @@
+import simpletransform
+
+from ..utils import cache
+
+# modern versions of Inkscape use 96 pixels per inch as per the CSS standard
+PIXELS_PER_MM = 96 / 25.4
+
+# cribbed from inkscape-silhouette
+def parse_length_with_units( str ):
+
+    '''
+    Parse an SVG value which may or may not have units attached
+    This version is greatly simplified in that it only allows: no units,
+    units of px, mm, and %.  Everything else, it returns None for.
+    There is a more general routine to consider in scour.py if more
+    generality is ever needed.
+    '''
+
+    u = 'px'
+    s = str.strip()
+    if s[-2:] == 'px':
+        s = s[:-2]
+    elif s[-2:] == 'mm':
+        u = 'mm'
+        s = s[:-2]
+    elif s[-2:] == 'pt':
+        u = 'pt'
+        s = s[:-2]
+    elif s[-2:] == 'pc':
+        u = 'pc'
+        s = s[:-2]
+    elif s[-2:] == 'cm':
+        u = 'cm'
+        s = s[:-2]
+    elif s[-2:] == 'in':
+        u = 'in'
+        s = s[:-2]
+    elif s[-1:] == '%':
+        u = '%'
+        s = s[:-1]
+    try:
+        v = float( s )
+    except:
+        raise ValueError(_("parseLengthWithUnits: unknown unit %s") % s)
+
+    return v, u
+
+
+def convert_length(length):
+    value, units = parse_length_with_units(length)
+
+    if not units or units == "px":
+        return value
+
+    if units == 'pt':
+       value /= 72
+       units = 'in'
+
+    if units == 'pc':
+       value /= 6
+       units = 'in'
+
+    if units == 'cm':
+       value *= 10
+       units = 'mm'
+
+    if units == 'mm':
+        value = value / 25.4
+        units = 'in'
+
+    if units == 'in':
+        # modern versions of Inkscape use CSS's 96 pixels per inch.  When you
+        # open an old document, inkscape will add a viewbox for you.
+        return value * 96
+
+    raise ValueError(_("Unknown unit: %s") % units)
+
+
+@cache
+def get_doc_size(svg):
+    doc_width = convert_length(svg.get('width'))
+    doc_height = convert_length(svg.get('height'))
+
+    return doc_width, doc_height
+
+@cache
+def get_viewbox_transform(node):
+    # somewhat cribbed from inkscape-silhouette
+    doc_width, doc_height = get_doc_size(node)
+
+    viewbox = node.get('viewBox').strip().replace(',', ' ').split()
+
+    dx = -float(viewbox[0])
+    dy = -float(viewbox[1])
+    transform = simpletransform.parseTransform("translate(%f, %f)" % (dx, dy))
+
+    try:
+        sx = doc_width / float(viewbox[2])
+        sy = doc_height / float(viewbox[3])
+        scale_transform = simpletransform.parseTransform("scale(%f, %f)" % (sx, sy))
+        transform = simpletransform.composeTransform(transform, scale_transform)
+    except ZeroDivisionError:
+        pass
+
+    return transform
diff --git a/inkstitch/threads/__init__.py b/lib/threads/__init__.py
index 03cd777b..03cd777b 100644
--- a/inkstitch/threads/__init__.py
+++ b/lib/threads/__init__.py
diff --git a/inkstitch/threads/catalog.py b/lib/threads/catalog.py
index cebae4ff..d9981dc6 100644
--- a/inkstitch/threads/catalog.py
+++ b/lib/threads/catalog.py
@@ -3,8 +3,10 @@ from os.path import dirname, realpath
 import sys
 from glob import glob
 from collections import Sequence
+
 from .palette import ThreadPalette
 
+
 class _ThreadCatalog(Sequence):
     """Holds a set of ThreadPalettes."""
 
diff --git a/inkstitch/threads/color.py b/lib/threads/color.py
index af474127..af474127 100644
--- a/inkstitch/threads/color.py
+++ b/lib/threads/color.py
diff --git a/inkstitch/threads/palette.py b/lib/threads/palette.py
index e1f47c7f..785fb082 100644
--- a/inkstitch/threads/palette.py
+++ b/lib/threads/palette.py
@@ -1,9 +1,10 @@
 from collections import Set
-from .color import ThreadColor
 from colormath.color_objects import sRGBColor, LabColor
 from colormath.color_conversions import convert_color
 from colormath.color_diff import delta_e_cie1994
 
+from .color import ThreadColor
+
 
 def compare_thread_colors(color1, color2):
     # K_L=2 indicates textiles
diff --git a/inkstitch/utils/__init__.py b/lib/utils/__init__.py
index ff06d4a9..ff06d4a9 100644
--- a/inkstitch/utils/__init__.py
+++ b/lib/utils/__init__.py
diff --git a/inkstitch/utils/cache.py b/lib/utils/cache.py
index 38fe8f2c..38fe8f2c 100644
--- a/inkstitch/utils/cache.py
+++ b/lib/utils/cache.py
diff --git a/inkstitch/utils/geometry.py b/lib/utils/geometry.py
index 61b98bcb..61b98bcb 100644
--- a/inkstitch/utils/geometry.py
+++ b/lib/utils/geometry.py
diff --git a/inkstitch/utils/inkscape.py b/lib/utils/inkscape.py
index 2d0298bc..2d0298bc 100644
--- a/inkstitch/utils/inkscape.py
+++ b/lib/utils/inkscape.py
diff --git a/inkstitch/utils/io.py b/lib/utils/io.py
index e87b9881..be1fdf24 100644
--- a/inkstitch/utils/io.py
+++ b/lib/utils/io.py
@@ -2,6 +2,7 @@ import os
 import sys
 from cStringIO import StringIO
 
+
 def save_stderr():
     # GTK likes to spam stderr, which inkscape will show in a dialog.
     null = open(os.devnull, 'w')
diff --git a/messages.po b/messages.po
index d1968764..7b2ca815 100644
--- a/messages.po
+++ b/messages.po
@@ -8,7 +8,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: PROJECT VERSION\n"
 "Report-Msgid-Bugs-To: EMAIL@ADDRESS\n"
-"POT-Creation-Date: 2018-04-29 21:29-0400\n"
+"POT-Creation-Date: 2018-05-01 21:21-0400\n"
 "PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
 "Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
 "Language-Team: LANGUAGE <LL@li.org>\n"
@@ -17,310 +17,299 @@ msgstr ""
 "Content-Transfer-Encoding: 8bit\n"
 "Generated-By: Babel 2.5.3\n"
 
-msgid ""
-"\n"
-"\n"
-"Seeing a 'no such option' message?  Please restart Inkscape to fix."
+msgid "Auto-Fill"
 msgstr ""
 
-msgid "Directory in which to install palettes:"
+msgid "Automatically routed fill stitching"
 msgstr ""
 
-msgid "Choose another directory..."
+msgid "Running stitch length (traversal between sections)"
 msgstr ""
 
-msgid "Install"
+msgid "Underlay"
 msgstr ""
 
-msgid "Cancel"
+msgid "AutoFill Underlay"
 msgstr ""
 
-msgid "Choose Inkscape palettes directory"
+msgid "Fill angle (default: fill angle + 90 deg)"
 msgstr ""
 
-msgid "Thread palette installation failed"
+msgid "Row spacing (default: 3x fill row spacing)"
 msgstr ""
 
-msgid "Installation Failed"
+msgid "Max stitch length"
 msgstr ""
 
-msgid ""
-"Thread palette files have been installed.  Please restart Inkscape to "
-"load the new palettes."
+msgid "Inset"
 msgstr ""
 
-msgid "Installation Completed"
+msgid "TRIM after"
 msgstr ""
 
-msgid "Ink/Stitch Thread Palette Installer"
+msgid "Trim thread after this object (for supported machines and file formats)"
 msgstr ""
 
-msgid "These settings will be applied to 1 object."
+msgid "STOP after"
 msgstr ""
 
-#, python-format
-msgid "These settings will be applied to %d objects."
+msgid ""
+"Add STOP instruction after this object (for supported machines and file "
+"formats)"
 msgstr ""
 
-msgid ""
-"Some settings had different values across objects.  Select a value from "
-"the dropdown or enter a new one."
+msgid "Fill"
 msgstr ""
 
-#, python-format
-msgid "Disabling this tab will disable the following %d tabs."
+msgid "Manually routed fill stitching"
 msgstr ""
 
-msgid "Disabling this tab will disable the following tab."
+msgid "Angle of lines of stitches"
 msgstr ""
 
-#, python-format
-msgid "Enabling this tab will disable %s and vice-versa."
+msgid "Flip fill (start right-to-left)"
 msgstr ""
 
-msgid "Inkscape objects"
+msgid "Spacing between rows"
 msgstr ""
 
-msgid "Embroidery Params"
+msgid "Maximum fill stitch length"
 msgstr ""
 
-msgid "Presets"
+msgid "Stagger rows this many times before repeating"
 msgstr ""
 
-msgid "Load"
+msgid "Satin Column"
 msgstr ""
 
-msgid "Add"
+msgid "Custom satin column"
 msgstr ""
 
-msgid "Overwrite"
+msgid "Zig-zag spacing (peak-to-peak)"
 msgstr ""
 
-msgid "Delete"
+msgid "Pull compensation"
 msgstr ""
 
-msgid "Use Last Settings"
+msgid "Contour underlay"
 msgstr ""
 
-msgid "Apply and Quit"
+msgid "Contour Underlay"
 msgstr ""
 
-msgid "Preview"
+msgid "Stitch length"
 msgstr ""
 
-msgid "Internal Error"
+msgid "Contour underlay inset amount"
 msgstr ""
 
-msgid "Please enter or select a preset name first."
+msgid "Center-walk underlay"
 msgstr ""
 
-msgid "Preset"
+msgid "Center-Walk Underlay"
 msgstr ""
 
-#, python-format
-msgid "Preset \"%s\" not found."
+msgid "Zig-zag underlay"
 msgstr ""
 
-#, python-format
-msgid ""
-"Preset \"%s\" already exists.  Please use another name or press "
-"\"Overwrite\""
+msgid "Zig-zag Underlay"
 msgstr ""
 
-msgid "Closing..."
+msgid "Zig-Zag spacing (peak-to-peak)"
 msgstr ""
 
-msgid "It is safe to close this window now."
+msgid "Inset amount (default: half of contour underlay inset)"
 msgstr ""
 
 msgid ""
-"A print preview has been opened in your web browser.  This window will "
-"stay open in order to communicate with the JavaScript code running in "
-"your browser.\n"
-"\n"
-"This window will close after you close the print preview in your browser,"
-" or you can close it manually if necessary."
+"One or more rails crosses itself, and this is not allowed.  Please split "
+"into multiple satin columns."
 msgstr ""
 
-msgid "Ink/Stitch Print"
+msgid "satin column: One or more of the rungs doesn't intersect both rails."
 msgstr ""
 
-msgid "Embroidery Simulation"
+msgid "Each rail should intersect both rungs once."
 msgstr ""
 
-#, python-format
-msgid "parseLengthWithUnits: unknown unit %s"
+msgid ""
+"satin column: One or more of the rungs intersects the rails more than "
+"once."
 msgstr ""
 
 #, python-format
-msgid "Unknown unit: %s"
-msgstr ""
-
-msgid "No embroiderable paths selected."
-msgstr ""
-
-msgid "No embroiderable paths found in document."
+msgid "satin column: object %s has a fill (but should not)"
 msgstr ""
 
-msgid "Tip: use Path -> Object to Path to convert non-paths before embroidering."
+#, python-format
+msgid ""
+"satin column: object %(id)s has two paths with an unequal number of "
+"points (%(length1)d and %(length2)d)"
 msgstr ""
 
-msgid "Stitch Plan"
+msgid "Satin stitch along paths"
 msgstr ""
 
-msgid "Auto-Fill"
+msgid "Running stitch length"
 msgstr ""
 
-msgid "Automatically routed fill stitching"
+msgid "Repeats"
 msgstr ""
 
-msgid "Running stitch length (traversal between sections)"
+msgid "Manual stitch placement"
 msgstr ""
 
-msgid "Underlay"
+msgid ""
+"Stitch every node in the path.  Stitch length and zig-zag spacing are "
+"ignored."
 msgstr ""
 
-msgid "AutoFill Underlay"
+msgid ""
+"Legacy running stitch setting detected!\n"
+"\n"
+"It looks like you're using a stroke smaller than 0.5 units to indicate a "
+"running stitch, which is deprecated.  Instead, please set your stroke to "
+"be dashed to indicate running stitch.  Any kind of dash will work."
 msgstr ""
 
-msgid "Fill angle (default: fill angle + 90 deg)"
+msgid "No embroiderable paths selected."
 msgstr ""
 
-msgid "Row spacing (default: 3x fill row spacing)"
+msgid "No embroiderable paths found in document."
 msgstr ""
 
-msgid "Max stitch length"
+msgid "Tip: use Path -> Object to Path to convert non-paths before embroidering."
 msgstr ""
 
-msgid "Inset"
+msgid ""
+"\n"
+"\n"
+"Seeing a 'no such option' message?  Please restart Inkscape to fix."
 msgstr ""
 
-msgid "TRIM after"
+msgid "Directory in which to install palettes:"
 msgstr ""
 
-msgid "Trim thread after this object (for supported machines and file formats)"
+msgid "Choose another directory..."
 msgstr ""
 
-msgid "STOP after"
+msgid "Install"
 msgstr ""
 
-msgid ""
-"Add STOP instruction after this object (for supported machines and file "
-"formats)"
+msgid "Cancel"
 msgstr ""
 
-msgid "Fill"
+msgid "Choose Inkscape palettes directory"
 msgstr ""
 
-msgid "Manually routed fill stitching"
+msgid "Thread palette installation failed"
 msgstr ""
 
-msgid "Angle of lines of stitches"
+msgid "Installation Failed"
 msgstr ""
 
-msgid "Flip fill (start right-to-left)"
+msgid ""
+"Thread palette files have been installed.  Please restart Inkscape to "
+"load the new palettes."
 msgstr ""
 
-msgid "Spacing between rows"
+msgid "Installation Completed"
 msgstr ""
 
-msgid "Maximum fill stitch length"
+msgid "Ink/Stitch Thread Palette Installer"
 msgstr ""
 
-msgid "Stagger rows this many times before repeating"
+msgid "These settings will be applied to 1 object."
 msgstr ""
 
-msgid "Satin Column"
+#, python-format
+msgid "These settings will be applied to %d objects."
 msgstr ""
 
-msgid "Custom satin column"
+msgid ""
+"Some settings had different values across objects.  Select a value from "
+"the dropdown or enter a new one."
 msgstr ""
 
-msgid "Zig-zag spacing (peak-to-peak)"
+#, python-format
+msgid "Disabling this tab will disable the following %d tabs."
 msgstr ""
 
-msgid "Pull compensation"
+msgid "Disabling this tab will disable the following tab."
 msgstr ""
 
-msgid "Contour underlay"
+#, python-format
+msgid "Enabling this tab will disable %s and vice-versa."
 msgstr ""
 
-msgid "Contour Underlay"
+msgid "Inkscape objects"
 msgstr ""
 
-msgid "Stitch length"
+msgid "Embroidery Params"
 msgstr ""
 
-msgid "Contour underlay inset amount"
+msgid "Presets"
 msgstr ""
 
-msgid "Center-walk underlay"
+msgid "Load"
 msgstr ""
 
-msgid "Center-Walk Underlay"
+msgid "Add"
 msgstr ""
 
-msgid "Zig-zag underlay"
+msgid "Overwrite"
 msgstr ""
 
-msgid "Zig-zag Underlay"
+msgid "Delete"
 msgstr ""
 
-msgid "Zig-Zag spacing (peak-to-peak)"
+msgid "Use Last Settings"
 msgstr ""
 
-msgid "Inset amount (default: half of contour underlay inset)"
+msgid "Apply and Quit"
 msgstr ""
 
-msgid ""
-"One or more rails crosses itself, and this is not allowed.  Please split "
-"into multiple satin columns."
+msgid "Preview"
 msgstr ""
 
-msgid "satin column: One or more of the rungs doesn't intersect both rails."
+msgid "Internal Error"
 msgstr ""
 
-msgid "Each rail should intersect both rungs once."
+msgid "Please enter or select a preset name first."
 msgstr ""
 
-msgid ""
-"satin column: One or more of the rungs intersects the rails more than "
-"once."
+msgid "Preset"
 msgstr ""
 
 #, python-format
-msgid "satin column: object %s has a fill (but should not)"
+msgid "Preset \"%s\" not found."
 msgstr ""
 
 #, python-format
 msgid ""
-"satin column: object %(id)s has two paths with an unequal number of "
-"points (%(length1)d and %(length2)d)"
-msgstr ""
-
-msgid "Satin stitch along paths"
+"Preset \"%s\" already exists.  Please use another name or press "
+"\"Overwrite\""
 msgstr ""
 
-msgid "Running stitch length"
+msgid "Closing..."
 msgstr ""
 
-msgid "Repeats"
+msgid "It is safe to close this window now."
 msgstr ""
 
-msgid "Manual stitch placement"
+msgid ""
+"A print preview has been opened in your web browser.  This window will "
+"stay open in order to communicate with the JavaScript code running in "
+"your browser.\n"
+"\n"
+"This window will close after you close the print preview in your browser,"
+" or you can close it manually if necessary."
 msgstr ""
 
-msgid ""
-"Stitch every node in the path.  Stitch length and zig-zag spacing are "
-"ignored."
+msgid "Ink/Stitch Print"
 msgstr ""
 
-msgid ""
-"Legacy running stitch setting detected!\n"
-"\n"
-"It looks like you're using a stroke smaller than 0.5 units to indicate a "
-"running stitch, which is deprecated.  Instead, please set your stroke to "
-"be dashed to indicate running stitch.  Any kind of dash will work."
+msgid "Embroidery Simulation"
 msgstr ""
 
 msgid ""
@@ -333,6 +322,17 @@ msgid ""
 "file to lexelby@github."
 msgstr ""
 
+msgid "Stitch Plan"
+msgstr ""
+
+#, python-format
+msgid "parseLengthWithUnits: unknown unit %s"
+msgstr ""
+
+#, python-format
+msgid "Unknown unit: %s"
+msgstr ""
+
 msgid "Color"
 msgstr ""
 
diff --git a/print/resources/inkstitch.js b/print/resources/inkstitch.js
index daa2cf4b..67690df2 100644
--- a/print/resources/inkstitch.js
+++ b/print/resources/inkstitch.js
@@ -300,7 +300,7 @@ $(function() {
 
   // Logo
   $('#logo-picker').change(function(e) {
-      var file = e.originalEvent.srcElement.files[0];
+      var file = e.originalEvent.currentTarget.files[0];
       var reader = new FileReader();
       reader.onloadend = function() {
           var data = reader.result;
diff --git a/requirements.txt b/requirements.txt
index 450786cd..314a2b0e 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -6,8 +6,11 @@ lxml
 appdirs
 numpy
 jinja2
-flask
 requests
+colormath
+
+# We're not ready for flask 1.0 yet.  Logging changed, among othe things.
+flask==0.*
+
 pywinutils; sys.platform == 'win32'
 pywin32; sys.platform == 'win32'
-colormath
diff --git a/templates/embroider_input.inx b/templates/embroider_input.inx
index 3af8f79e..24bba7e4 100644
--- a/templates/embroider_input.inx
+++ b/templates/embroider_input.inx
@@ -2,7 +2,7 @@
 <inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
     <_name>{{ format | upper }} file input</_name>
     <id>org.inkstitch.input.{{ format }}</id>
-    <dependency type="executable" location="extensions">embroider_input.py</dependency>
+    <dependency type="executable" location="extensions">inkstitch.py</dependency>
     <dependency type="executable" location="extensions">inkex.py</dependency>
     <input>
         <extension>.{{ format }}</extension>
@@ -10,8 +10,9 @@
         <_filetypename>Ink/Stitch: {{ description }} (.{{ format }})</_filetypename>
         <_filetypetooltip>convert {{ format | upper }} file to Ink/Stitch manual-stitch paths</_filetypetooltip>
     </input>
+    <param name="extension" type="string" gui-hidden="true">input</param>
     <script>
-        <command reldir="extensions" interpreter="python">embroider_input.py</command>
+        <command reldir="extensions" interpreter="python">inkstitch.py</command>
     </script>
 </inkscape-extension>