On Wed, Feb 5, 2014 at 9:08 PM, L. David Baron <dba...@dbaron.org> wrote:
> On Wednesday 2014-02-05 20:37 -0800, Rik Cabanier wrote: > > Spec > > http://www.w3.org/TR/compositing-1/#background-blend-mode > > > > > > *Summary* > > > > This new CSS property allows you to specify blending between background > images > > and the background color. > > I'm a little concerned about shipping background-blend-mode without > mix-blend-mode, We would like to ship mix-blend-mode too. In our experiments, Firefox has the most stable implementation. (We only have 1 open bug ) However, we're taking a slow path today and it might take us a while to implement the fast path. We're facing similar problems on the other browsers so we're doing the same staggered approach there. > just because mix-blend-mode is the primary blending > control, and background-blend-mode handles an edge case. I'm > worried that shipping support for the edge case first will encourage > authors to contort what they're doing in order to fit that edge > case, and, as a result, harm other things (for example, by making > things that should be content be background images instead, and > hurting accessibility). > That is a valid concern. Of course, one could say the same thing if we shipped mix-blend-mode first :-) Since background-blend-mode *only* applies to background images and not the content, it doesn't feel likely that this will happen that often. On the other hand, if it's semantically more correct to use backgrounds, people should do so. As a bonus, since background blending consumes less resources, it will result in a better experience. > > Otherwise I think this is reasonable, though. > Thanks! I guess I didn't follow the exact guidelines of https://wiki.mozilla.org/WebAPI/ExposureGuidelines#Intent_to_Ship<https://wiki.mozilla.org/WebAPI/ExposureGuidelines> since I didn't mention a date. When would be a good time to switch this on? _______________________________________________ dev-platform mailing list dev-platform@lists.mozilla.org https://lists.mozilla.org/listinfo/dev-platform
