add icc color workaround (#3687)

lib/threads/color.py

@@ -5,7 +5,7 @@
 
 import colorsys
 
-from inkex import Color
+from inkex import Color, ColorCMS
 from pyembroidery.EmbThread import EmbThread
 
 
@@ -33,6 +33,11 @@ class ThreadColor(object):
             self.rgb = (color.get_red(), color.get_green(), color.get_blue())
             return
         elif isinstance(color, str):
+            # This will catch icc colors which cannot be parsed as rgb colors directly
+            if isinstance(Color(color), ColorCMS):
+                # The icc color has a hex color prepended.
+                # The easiest way to receive a color value is therefore to just use the hex color from the front.
+                color = color.split()[0]
             self.rgb = tuple(Color(color).to('rgb').get_values(False))
         elif isinstance(color, (list, tuple)):
             self.rgb = tuple(color)