== What to do if I need to add new widgets to GUI ==
First thing to mention, is that all real GU behaviour is not described in theme config. You can only alter the look, not the feel. So all real coding should go in corresponding files in gui/ directory.
When you add a new widget, follow this checklist before committing:
Currently the classic theme has the following most notable differences from the modern theme:
* Line spacing
everywhere is narrower* Indentation is lesser in most cases , besides in Game Options dialog