New answers tagged texture
You may be interested in the Grey's Magic for Image Computing (G'MIC) plugin for Gimp. In their collection of Arrays & Tiles plugins you will find the Array [random colors]. Opacity: controls the amount of variation induced by random colors. X-tiles, Y-tiles: control the number of resulting tiles (maximum 20). In addition various color variation ...
You can use the Pixelize feature, Filters > Blur > Pixelize It works better on an photograph because it has more colors to pull from but you can repeat this effect to your liking to create more colors from its previously created or 'pixelized' colors.
In addition to Scott answer , I checked Envelope options and ticked the box Distort Pattern fills
Tick the box in the Preferences to Transform Pattern Tiles Then do what you are doing.
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