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Request Brightness adjustment for palettes

I'd like to be able to adjust the brightness of an entire color map using something similar to the gimpbrightnesscontrasttool. It's intended for use in the Exult game engine that was designed to run Ultima 7. GIMP palettes can be imported for use in various lighting level simulating palettes.

This is mainly due to talk of possibly being able to use 256 colors for each individual shape. End users would need to be able to easily convertible and test the palettes.

The following script, written by Rob Antonishen, permits adjustment of the luminosity of the palette of an indexed image (as well as hue and saturation):

http://gimp-registry.fargonauten.de/node/21543

Thanks. That seems to work even on the custom format that is used.

Sorry, the short description of the plugin wasn't very good and I skipped looking at the whole page.

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