Colors can be any valid HTML color: Either hex triplets
(#RRGGBB)
or named colors (e.g. papayawhip).
See for some information that's actually useful.
E2 Color Toy will help translate normal numbers into HTML colors, and it
will also generate gradients from one color to another.
Font information is expressed in CSS
terms: 12 pixels is expressed as "12px", 12 points is
expressed as "12pt". You can also do percentages.
Percentages of what? Damned if I know! Font names are
comma-separated lists, such as "Helvetica, Arial, sans-serif",
where the browser tries to find the first one, then moves on down
the list until it finds one that's installed on your computer.
