Gamma Slamma is a great little tool to remove gamma flags in PNG files. You just drop files on it. Simple as that.
Unfortunately 4 years after its inception it is increasingly 404ing. So here a link to the DMG in case you need to download it:
GammaSlamma 1.1
Month: May 2011
A, the good old days, when I had hair (well kinda) and computers were large, big and expensive.
These emulators from Nvidia reminded me of that time back last century.
And they also get to show how much horsepower actually is in a modern day GPU.