RFR: 8345004: [BACKOUT] GTK & Nimbus LAF: Tabbed pane's background color is not expected one when change the opaque checkbox. [v2]

[Prasanta Sadhukhan]

On Wed, 27 Nov 2024 04:55:25 GMT, Abhishek Kumar <abhiscxk at openjdk.org> wrote:

>> The fix for [JDK-8226990](https://bugs.openjdk.org/browse/JDK-8226990) causes regression in dark theme for GTK L&F on Ubuntu system and that results in manual test failures identified recently.
>> 
>> Few of the changes made in [JDK-8226990](https://bugs.openjdk.org/browse/JDK-8226990) is further modified in [JDK-8335130](https://bugs.openjdk.org/browse/JDK-8335130).
>> 
>> Backing out the overall fix to prevent any regression.
>> 
>> CI testing after revert is fine.
>
> Abhishek Kumar has updated the pull request incrementally with one additional commit since the last revision:
> 
>   PL TestJTabbedPaneOpaqueColor.java for windows and linux

Marked as reviewed by psadhukhan (Reviewer).

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PR Review: https://git.openjdk.org/jdk/pull/22379#pullrequestreview-2463925879