Ah, that's what happened to me today. I have no idea when I managed to enable this but images all over the place had black jagged outlines. This is a screenshot of the Google logo from their search page, also seen in lots of recent xkcd comics and the logo of a newsletter I get. tended to be "text in pictures" kinds of things.
Bug 1555329 Comment 4 Edit History
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Ah, that's what happened to me today. I have no idea when I managed to enable this but images all over the place had black jagged outlines. This is a screenshot of the Google logo from their search page, also seen in lots of recent xkcd comics and the logo of a newsletter I get. tended to be "text in pictures" kinds of things. If you don't have the setting enabled, or once this gets fixed, imagine the pale grey blocks around the letters were pitch black.
Ah, that's what happened to me today. I have no idea when I managed to enable this but images all over the place had black jagged outlines. This is a screenshot of the Google logo from their search page, also seen in lots of recent xkcd comics and the logo of a newsletter I get. tended to be "text in pictures" kinds of things. If you don't have the setting enabled, or once this gets fixed, imagine the pale grey blocks around the letters were pitch black. NB: if you don't have the buggy setting enabled you may have to use "view image" from the context menu on the screenshot to see the artifacts.