(In reply to Daniel Holbert [:dholbert] from comment #2) > Though, also: do you know what's making the background so dark in the right pane? Does that area have a dark background regardless of this pref-setting, or does this pref-tweak seem to give that area a dark background? (I'm concerned that if we simply remove the white backplates over there, then that text may be hard to read...) That's simply the non-high contrast colors for DevTools dark theme. The devtools team has decided to disable the high contrast color adjustments until they have time to fix the CSS to work well with HCM (this is what bug 1575766 is doing), which means that right now, colors appear as authored in the CSS. I think the backplate should only apply if we are doing the color adjustments, which is not the case here.
Bug 1593449 Comment 4 Edit History
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(In reply to Daniel Holbert [:dholbert] from comment #2) > Though, also: do you know what's making the background so dark in the right pane? Does that area have a dark background regardless of this pref-setting, or does this pref-tweak seem to give that area a dark background? (I'm concerned that if we simply remove the white backplates over there, then that text may be hard to read...) That's simply the non-high contrast colors for DevTools dark theme. The devtools team has decided to disable the high contrast color adjustments (this is what bug 1575766 has done) until they have time to fix the CSS to work well with HCM, which means that right now, colors appear as authored in the CSS. I think the backplate should only apply if we are doing the color adjustments, which is not the case here.