RESOLVED FIXED 261841
[Filters] Don't override the alpha channel of the GraphicsDropShadow color by the shadow opacity 
https://bugs.webkit.org/show_bug.cgi?id=261841
Summary [Filters] Don't override the alpha channel of the GraphicsDropShadow color by...
Said Abou-Hallawa
Reported 2023-09-20 14:09:30 PDT
Creating the GraphicsDropShadow with color equal to auto color = m_shadowColor.colorWithAlpha(m_shadowOpacity); is wrong since it will override the alpha channel of the drop-shadow filter with the shadow opacity. For example an element with the following css filter: drop-shadow(15px 15px 0px rgba(0, 0, 0, 0.5)); will display a black drop shadow effect for this element. This css filter appears in the expected test page: imported/w3c/web-platform-tests/css/filter-effects/css-filters-animation-drop-shadow-expected.html.
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Radar WebKit Bug Importer
Comment 1 2023-09-20 17:09:11 PDT
<rdar://problem/115812347>
Said Abou-Hallawa
Comment 2 2023-09-20 17:14:53 PDT
Pull request: https://github.com/WebKit/WebKit/pull/17997
EWS
Comment 3 2023-09-20 22:07:41 PDT
Committed 268233@main (db985ec58914): <https://commits.webkit.org/268233@main> Reviewed commits have been landed. Closing PR #17997 and removing active labels.
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