Sky Style Language

For now, the Sky style language is CSS with the following restrictions:

• No combinators
• Only = and ~= attribute selectors
• Lots of other selectors removed // TODO(ianh): list them
• Floats removed
• Lots of other layout models removed // TODO(ianh): list them

Planed changes

Add //-to-end-of-line comments to be consistent with the script language.

Add a way to add new values, e.g. by default only support #RRGGBB colours (or maybe only rgba() colours), but provide a way to enable CSS4-like “color(red rgb(+ #004400))” stuff.