GIMP Plugin Registry

Draw a precise circle at center point specified with the brush and color active.

Creates a diffraction pattern using a circular gradient and the foreground and background colours.

Creates an image of rainbow coloured circles to give a plasma-like pattern. Also comes with an animation script that animates the pattern. Frames are saved as layers. Choose min and max speed and circles are randomly increases/decreased in radius according to the set speeds.
TODO - Save frames as XCF files compatible with GAP.  read more »