Change color scheme doesn't work in ST4 #595
Description
When selecting MarkdownEditing: Change color scheme ... in ST4 on macOS it opens the file, but doesn't show the theme preview window:
Packages/MarkdownEditing/MarkdownEditor-Dark.tmTheme
Traceback (most recent call last):
File "/Applications/Sublime Text.app/Contents/MacOS/Lib/python33/sublime_plugin.py", line 1494, in run_
return self.run(edit)
File "/Users/igor/Library/Application Support/Sublime Text 3/Installed Packages/MarkdownEditing.sublime-package/bootstrap.py", line 158, in run
File "/Users/igor/Library/Application Support/Sublime Text 3/Installed Packages/MarkdownEditing.sublime-package/bootstrap.py", line 105, in choose_color_theme
File "/Users/igor/Library/Application Support/Sublime Text 3/Installed Packages/MarkdownEditing.sublime-package/bootstrap.py", line 105, in <listcomp>
AttributeError: 'NoneType' object has no attribute 'group'