Built for Mac OS X If you design web pages with graphics and photos, you have undoubtedly had PC users say that your photos are too dark. GammaToggle allows a Mac-based designer to very easily toggle back and forth between the two standard gamma settings - allowing a simple way to see how graphics will look on both PCs & Macs. You can toggle between gamma settings from within any application (eg: Photoshop when you are editing pictures, web browser when you are previewing and editing an HTML document).