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Spot upscaled images on retina MacBook Pro Apps
Cabel Sasser of Panic shared something interesting on Twitter yesterday. He said that running the following command will highlight images that haven't been upscaled by doubling their size:
defaults write -g CGContextHighlight2xScaledImages YES
I don't have a retina MacBook Pro to test this, but this should be useful for developers, or simply for others who want to see which images are native retina resolution and which are not.
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Spot upscaled images on retina MacBook Pro
Authored by: wfolta on Jun 21, '12 03:04:39PM

I just tried it. You have to quit Safari and relaunch it to see the effect. Graphics are highlighted with a red tint. Interesting, but annoying, so you can use "NO" to turn it off.

The most interesting use is to switch to Safari's Top Sites view to see pink boxes scattered over a dozen of your favorite pages.

Edited on Jun 21, '12 03:08:30PM by wfolta



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