I don't know what this is

I keep forgetting about the screen gamma thing.

See, Mac displays are brighter than Windows/Unix displays (for values of Unix that apparently exclude OSX). That’s one reason Macs are so popular among visual artists. This guy’s jacket was much brighter on my monitor when I was working him over in Photoshop. I didn’t see the faded-out version till I invoked the Save for Web, which previews the final appearance for me as it’ll show up to most viewers. I’m pretty sure there are things I can do to get it to display that way while I’m working on the image, and I should probably get into the habit of doing them.