4 component color (red, green, blue, alpha) based on 8 bit components [0..255].
Values are in 0..255 range and represent low-dynamic range (LDR) colors. The color values are assumed to be in 'Gamma space'.
Interprets the color as r,g,b,a byte values.
Interprets the color as a single 32bit integer. Used for assignments and comparisons.