==== 'extra' section ====
==== Shadows ====
Shadows are defined in number of extra pixels at each side. However, each widget uses its own shadow format. Currently it is hardcoded, but if there is a need, it could be easily added to the theme config.
Specifies number of extra pixels which shadow covers. This is right-bottom shadow.
==== Fonts ====
Fonts used in the theme could also be specified. You should provide the font file in BDF format and put it to the theme archive.