All Constants

The default color of a widget: the same color as its parent widget, or cl_background if it has no parent.

cl_transparent makes the widget's area transparent, showing the content of the parent widget or of a sibling with a lower z-order, instead of a color.

cl_user0..cl_user9 are symbolic color names for theme support, for cases where the actual RGB values are not known at compile time (for known values, prefer the namedrgb group instead).