Only used Geany about 3 mo - quite a bit. I modified my own color scheme, to learn about it, but don't use it exclusively. Regardless of many tried color schemes - even default - there's almost no syntax color for some files like resource files - gtkrc - Gtk2 theme resource file; or the ~/.gtkrc-2.0 file. But if I open those files in Linux's - xed - simple text editor, it shows much more syntax color, some syntax errors and clearly all commented lines.
Don't know the lack of color is because Geany doesn't recognize the files, or there's not a geany "filetypes.*" file for this type of file? Under Document > Set file type, Geany has gtkrc & .gtkrc-2.0 set as config files. Don't know if that's correct.
Is there a proper way to show more color in files like gtkrc?
Experimenting, I can set the files as another type and Geany shows more color, but I'm not sure if most of the colors correspond to anything meaningful from a programming view.