Is it legal to display a GPLed image on a coffee mug? Wilber is the GIMP mascot and someone wants to sell mugs with his image on them.. Legal? Olivier Ripoll replied:
Wilber logo is GPLed. So as long as you provide the source code of your mug and carve the complete GPL licence on the bottom face of the mug, there is no problem.

Everyone who’s done any processing of photos will know about the Auto button of their Colour Level tool. It’s something that probably appears in every decent photo manipulation application and it’s invaluable for correcting colour casts on photos. Unfortunately it doesn’t always work very well.
