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Table of red, green, blue, and alpha float values between 0 and 1. All values are optional, default optional value for colors is 0, for alpha 1. Alternatively, values can be from 0-255, they are interpreted as such if at least one of r,g or b is > 1.

name meaning type
r [optional, default 0] red value float
g [optional, default 0] green value float
b [optional, default 0] blue value float
a [optional, default 1] alpha value - transparency float


   color = {r=1, g=0, b=0, a=0.5} -- red
   color = {r=1, a=0.5} -- the same red, omitting 0 colors
   color = {} -- black