Cells try to bounce between low and high luminance but are held by their neighbors; the hue from the highest luminance spreads to the neighbors.

's' to save a gif
'a' to stop/start the animation

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Minting InstructionsCell size will determine the size of the grid.
Freedom is how a cell can diverge of their neighbors.
Select the number of seeds and their color.
For color pickers, only hue maters.