- color-r COLORprocedure
- color-g COLORprocedure
- color-b COLORprocedure
- color-a COLORprocedure
- set-color-r! COLOR Rprocedure
- set-color-g! COLOR Gprocedure
- set-color-b! COLOR Bprocedure
- set-color-a! COLOR Aprocedure
- rgb-color-set! COLOR R G Bprocedure
- rgba-color-set! COLOR R G B Aprocedure
Getters and setters for colors. color-a and set-color-a! can only be used with 4 element (alpha) colors.