Bug 261708

Summary: Mix-blend-mode incorrectly blends with view base color
Product: WebKit Reporter: Matt Woodrow <mattwoodrow>
Component: Layout and RenderingAssignee: Matt Woodrow <mattwoodrow>
Status: RESOLVED FIXED    
Severity: Normal CC: bfulgham, simon.fraser, webkit-bug-importer, zalan
Priority: P2 Keywords: InRadar
Version: WebKit Nightly Build   
Hardware: Unspecified   
OS: Unspecified   
See Also: https://github.com/web-platform-tests/wpt/pull/42069
Bug Depends on:    
Bug Blocks: 176830    

Matt Woodrow
Reported 2023-09-18 16:29:01 PDT
Mix-blend-mode on an element that blends into the 'Root Element Group' should have only the root element's background color, or transparent if none. We're including the opaque white base color of the RenderView too, which is incorrect.
Attachments
Radar WebKit Bug Importer
Comment 1 2023-09-18 16:30:04 PDT
Matt Woodrow
Comment 2 2023-09-18 16:33:34 PDT
Matt Woodrow
Comment 3 2023-09-19 16:41:58 PDT
Submitted web-platform-tests pull request: https://github.com/web-platform-tests/wpt/pull/42069
EWS
Comment 4 2023-09-19 20:22:25 PDT
Committed 268173@main (4f26343f6d0b): <https://commits.webkit.org/268173@main> Reviewed commits have been landed. Closing PR #17884 and removing active labels.
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