[Webkit-unassigned] [Bug 206771] Nested container scrollbars always follow dark theme preference

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=206771

Liam DeBeasi <ldebeasi at gmail.com> changed:

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                 CC|                            |ldebeasi at gmail.com

--- Comment #2 from Liam DeBeasi <ldebeasi at gmail.com> ---
I am also running into this issue on macOS Safari. Non-body scrollable containers do not update the scrollbar styling for dark mode. The current behavior is that the scrollbars always appear with a light theme.

Steps to Reproduce:

1. Open this CodePen in macOS Safari: https://codepen.io/liamdebeasi/pen/poJYygy
2. Open System Preferences and go to "General".
3. Set "Appearance" to "Light".
4. Set "Show scroll bars" to "Always". A light-themed scrollbar should now be visible on the scrollable div in the CodePen.
5. Set "Appearance" to "Dark" in System Preferences.
6. You should notice that the scrollbar remains light-themed.

In this case, I would expect that the scrollbar's styling would become dark themed.

Tested on Safari 13.1 on macOS 10.15.4

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