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The minimum value of 0 means that a particular color doesn’t shine at all, and a value of 255 means that a colour shines a max brightness where the more significant bits toggled to 1, the higher greater the brightness.
For example, if you wanted the green and red LED components to shine at a quarter brightness (64) and for the blue component to be double that brightness level (128), then your data frame would be 01000000(G) 01000000(R) 10000000(B).
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