Bug 232041

Summary: [meta] inverted-colors matches smart invert; should match classic
Product: WebKit Reporter: Luke Warlow <lwarlow>
Component: CSSAssignee: Nobody <webkit-unassigned>
Status: RESOLVED INVALID    
Severity: Normal CC: dino, koivisto, lwarlow, sabouhallawa, thorton, webkit-bug-importer
Priority: P2 Keywords: InRadar
Version: Safari 15   
Hardware: Unspecified   
OS: macOS 11   
Bug Depends on: 259682    
Bug Blocks:    

Description Luke Warlow 2021-10-20 14:01:47 PDT 
https://www.w3.org/TR/mediaqueries-5/#inverted - The media queries level 5 spec is pretty clear that the inverted-colors media query should only match when all pixels have been inverted (as is the case with macOS' Classic Invert setting) and NOT when the UA has done some smart invert (as is the case with macOS' "Invert colours" setting when "Classic Invert" isn't also checked).

Safari (at least on macOS) does the opposite of this. When "Invert colours" is checked, but "Classic Invert" is not, the media query matches. But when "Classic Invert" is then toggled the media query no longer matches.

It would be good if Safari was updated to match the specs behaviour, cause otherwise this media query is effectively useless to developers.
Comment 1 Radar WebKit Bug Importer 2021-10-27 14:02:32 PDT 
<rdar://problem/84726757>
Comment 2 Luke Warlow 2023-08-03 13:51:51 PDT 
Having discussed this it turns out I've misunderstood how the setting works and Safari is correct