114331 2013-04-09 21:54:12 -0700 WebView color management differs from Safari 2013-08-26 15:48:15 -0700 1 1 1 Unclassified WebKit Layout and Rendering 528+ (Nightly build) Mac OS X 10.8 NEW InRadar P2 Minor --- 1 jonathan webkit-unassigned ap benjamin cbiesinger jonathan mitz mmaerean simon.fraser thorton oldest_to_newest 872587 0 jonathan 2013-04-09 21:54:12 -0700 CSS colors appear to render in a different color space when the HTML document is loaded in Safari versus loaded in a WebView (from the Obj-C WebKit.framework). Specifically, the document at http://ethreesoftware.com/misc/colortest.html has a background-color of rgb(70, 130, 180). When Safari renders the document and a screenshot is taken (PNG tagged with the current display profile), sampling the background pixels in Photoshop yields the correct rgb(70, 130, 180) values. If you load the exact same document inside of a WebView, take a screenshot, and sample the background pixels, the colors are instead rgb(58, 128, 182). Example screenshot at http://ethreesoftware.com/misc/webview-left-safari-right.png. Not sure what might be going on here. Is the WebView not using NSDeviceRGBColorSpace but Safari is? Is there some kind of OpenGL surface interaction that's going on? The above results seem consistent no matter what application I test with (i.e. WebViews in Apple Mail, in third-party apps like Coda, and in reduced test-case apps consisting of just a window and a WebView—all render the "wrong" color). OS X 10.8.3 (12D78), Safari 6.0.3 (8536.28.10) 872593 1 jonathan 2013-04-09 21:58:55 -0700 Forgot to mention that this is WebKit version 536.28.10 872601 2 mitz 2013-04-09 22:31:35 -0700 <rdar://problem/12263557> 872605 3 197209 benjamin 2013-04-09 22:46:47 -0700 Created attachment 197209 Original test page. Original test page attached. Jonathan: for info, Radar is the internal bug tracker of Apple. The link above and the keyword "InRadar" indicate this issue is now also being tracked by Apple. 872615 4 simon.fraser 2013-04-09 23:04:29 -0700 Probably related to the fact that Safari is rendering via CoreAnimation. 197209 2013-04-09 22:46:47 -0700 2013-04-09 22:46:47 -0700 Original test page. colortest.html text/html 176 benjamin PGh0bWw+PGhlYWQ+PC9oZWFkPjxib2R5IGNvbnRlbnRlZGl0YWJsZT0idHJ1ZSIgc3R5bGU9ImZv bnQtZmFtaWx5OiBIZWx2ZXRpY2EsIHNhbnMtc2VyaWY7IGZvbnQtc2l6ZTogMTJweDsgYmFja2dy b3VuZC1jb2xvcjogcmdiKDcwLCAxMzAsIDE4MCkgIWltcG9ydGFudDsiPkNvbG9yPC9ib2R5Pjwv aHRtbD4=