Press 'r' for randomness.
Press 'h' to toggle interface.
Regenerate

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Shift

Shift the colour by a random value.

Logic: Each of the RGB values of the selected colour is shifted by a random number.

The numbers are shifted in the range of -100 to 100 (in 20 increments). If the shifted value is high enough it “wraps around”. For example for the Red value of 200 shifting it by 100 will result in the value of 45.

Note: The gradient is created using a method simulating true pigment mixing giving lifelike results. Read more about it here.