filetypes.common affects all color schemes (should be named default.styles instead?)

[jperals]

After installing Geany on Rails, the caret (text cursor) in Geany becomes white forever more, no matter the type of file that I open and no matter the color scheme that I choose in Geany. It makes it very hard to see the current position of the caret when I use a light color scheme.

I got this advice in the #geany chat:

filetypes.xml should be fine, filetypes.common would probably be better named default.styles thats mostly what it contains (but filetypes.common is the historical name) thats why it messes with colour schemes

Which worked for me (but I'm not using Rails now so I don't know if this breaks something useful for editing Rails-related files, please check this).