Hey everyone, I've had an iMac 5k since late 2015 (meaning my Applecare is up in December, so I have a little time to think about this) and I've just started noticing this problem. Whenever I fill the screen with white, or drag a window over one of the edges, there's a noticeable reddening to the white leading up to the edge, which leads me to believe there's some bleed or drop-off happening with the backlight. But I'm not familiar with how the lighting on these things is constructed, so I'm not sure. Something coming unglued causing light leak off the screen? Has anyone else run into this problem? And do you think this is something that Applecare would cover fixing up? It's an issue because I use my iMac for video editing/animation, and while I know the iMac isn't exactly officially color-accurate, I need color consistency in my work. Thanks for anything you guys might know about this—sorry if I didn't dig up any previous threads which may have addressed this.