FastLED v3 and later support "color palettes", which map from a single one-byte value (0-255) to a full RGB color. By populating the 'lookup table' palette with different color schemes, you can give ...

The first column specifies where along the palette's indicies (0-255), the gradient should be anchored, as shown in the diagram above. In this case, the first gradient runs from black to red, in index ...