NEW154525
Web Inspector: Autocomplete CSS system colors 
https://bugs.webkit.org/show_bug.cgi?id=154525
Summary Web Inspector: Autocomplete CSS system colors
Nikita Vasilyev
Reported 2016-02-21 21:10:18 PST
The following: background-color: H| should autocomplete with "Highlight". All the system keywords: https://www.w3.org/TR/CSS2/ui.html#system-colors Although this spec is deprecated, it is still supported by WebKit and all major browsers.
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Radar WebKit Bug Importer
Comment 1 2016-02-21 21:10:46 PST
<rdar://problem/24763778>
Joseph Pecoraro
Comment 2 2016-02-21 22:53:08 PST
I notice you didn't assign this bug to you. Are you going to put up a patch for this? What is interesting about this is that the actual color is only known by the backend, not the frontend. So to produce an accurate color swatch for "highlight" you have to check what "highlight" actually resolves to on the target. This is important remotely inspecting a target. You could for instance evaluate some JavaScript and get the computed style of something with that color. Note the element has to be in the DOM, so appending to the <head> ensures the element won't cause any visible change to the page when doing the calculation: var span = document.createElement("span"); span.style.backgroundColor = "highlight"; document.head.appendChild(span); var rgbColor = getComputedStyle(span).backgroundColor; span.remove(); rgbColor // rgb(...)
Nikita Vasilyev
Comment 3 2016-02-21 23:01:27 PST
(In reply to comment #2) > I notice you didn't assign this bug to you. Are you going to put up a patch > for this? Nope. I intentionally didn't assign it to myself and added "GoodFirstBug" keyword. > > What is interesting about this is that the actual color is only known by the > backend, not the frontend. So to produce an accurate color swatch for > "highlight" you have to check what "highlight" actually resolves to on the > target. This is important remotely inspecting a target. [...] Good catch! I didn't realise it would be that complicated.
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