RFR: 8226990: GTK & Nimbus LAF: Tabbed pane's background color is not expected one when change the opaque checkbox. [v8]

[Abhishek Kumar]

On Thu, 18 Apr 2024 00:55:00 GMT, Harshitha Onkar <honkar at openjdk.org> wrote:

>> Abhishek Kumar has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   Tabs Opaque checkbox handle in synth derived lafs
>
> test/jdk/javax/swing/JTabbedPane/TestJTabbedPaneOpaqueColor.java line 152:
> 
>> 150: 
>> 151:         layoutButtonPanel.add(scrollButton);
>> 152:         layoutButtonPanel.add(wrapButton);
> 
> Unless the test frame is resized or there are more number of tabs, the effect of `SCROLL_TAB_LAYOUT` or `WRAP_TAB_LAYOUT` isn't seen.

Updated the number of test to have the effect of `SCROLL_TAB_LAYOUT` or `WRAP_TAB_LAYOUT`.

-------------

PR Review Comment: https://git.openjdk.org/jdk/pull/17720#discussion_r1569962076