Types/Color

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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 value is > 1.
Color allows the short-hand notation of passing an array of exactly 3 or 4 numbers.
The game usually expects colors to be in pre-multiplied form (color channels are pre-multiplied by alpha).

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

Examples

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