Since IE supports this with hardware acceleration I don't think there's any theoretical reason we couldn't. That being said it is probably a lot of work and probably not worth doing right now.
-Jeff On 2013-04-09, at 2:21 PM, Matt Brubeck wrote: > Support for "outline-color: invert" was removed in Firefox 3, and a bug to > restore support was RESOLVED WONTFIX several years ago because it was deemed > infeasible while using hardware acceleration [1]. > > Since then, some developers have asked for reconsideration on the bug; since > some of their questions in the bug remain unanswered, one developer asked me > to bring it up here. > > The specific question is whether the many changes to our graphics > acceleration since 2009 have made it any more feasible to implement "invert" > today. Do IE or Opera use any tricks to do this that could be useful for us > too? > > In addition to the obvious use case of making outlines visible against > multiple background colors, apparently this can be used for hacks [2] to > invert entire regions, similar to David Baron's SVG filter demo [3] but > possibly more flexible. > > [1]: https://bugzilla.mozilla.org/show_bug.cgi?id=359497#c24 > [2]: http://lea.verou.me/2011/04/invert-a-whole-webpage-with-css-only/ > [3]: http://dbaron.org/log/20110430-invert-colors > _______________________________________________ > dev-platform mailing list > dev-platform@lists.mozilla.org > https://lists.mozilla.org/listinfo/dev-platform _______________________________________________ dev-platform mailing list dev-platform@lists.mozilla.org https://lists.mozilla.org/listinfo/dev-platform
