Max specifies color with four floating-point numbers between 0 and 1. The first three numbers are for the R, G, and B components, and the fourth value is for alpha. We call this format RGBA. Alpha defines the transparency of the color. If the alpha is 0, you won't see the color at all. If the alpha is 1, the color is completely opaque. When converting between a legacy color style, the alpha is set to 1.
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