Colors
Color property macros like css::color!
and css::fill!
and the like have shorthands for full-alpha RGB colors as well as grayscale.
css::color!(rgb 0xFF_00_00), // same as css::color!(0xFF_00_00_FF) or #F00 in css
css::color!(gray 0xAD), // same as css::color!(0xAD_AD_AD_FF) or #ADADAD in css
Css named colors also can be used
css::color!(css::color::PALEVIOLETRED),
css::color!(css::color::GREEN),