Returns the color-model for a color-spec.
color
color-model color-spec => color-model
color-spec
A color specification.
color-model
:gray , :rgb , or :hsv .
:gray
:rgb
:hsv
COLOR 29 > (color:make-gray 0.66667s0)
#(:GRAY 0.66667S0)
COLOR 30 > (color-model *)
:GRAY
COLOR 31 >
make-hsv make-rgb make-gray color-<component> color-level