RFR: 8348760: RadioButton is not shown if JRadioButtonMenuItem is rendered with ImageIcon in WindowsLookAndFeel [v9]

[Alexey Ivanov]

On Tue, 4 Feb 2025 14:16:16 GMT, Prasanta Sadhukhan <psadhukhan at openjdk.org> wrote:

>> When JRadioButtonMenuItem is called with imageIcon, then only imageIcon is shown without radiobutton in WIndowsLookAndFeel as there was no provision of drawing the radiobutton alongside icon.
>> If icon is not there, the radiobutton is drawn. Added provision of drawing the radiobutton windows Skin even when imageIcon is present.
>
> Prasanta Sadhukhan has updated the pull request incrementally with one additional commit since the last revision:
> 
>   retain diff of OFFSET between skin background start coord and skin coordinate

On that note, Swing's menu rendering doesn't blend with the way Windows 11 renders menus:

1. Menu has rounded corners,
2. The highlight color is just slightly darked than the menu background,
3. The highlight rectangle also has rounded.
 
![A highlighted menu item Windows-11-highlighted-menu-item-in-Explorer](https://github.com/user-attachments/assets/0f7de244-58f4-42c5-b8da-2461ce04b1d0)

This is out of scope of this issue, I just wanted to bring it up. I guess I should submit a bug against this, it would be more relevant as support for Windows 10 is phased out. Swing uses the theming API to paint menus, yet it differs now.

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PR Comment: https://git.openjdk.org/jdk/pull/23324#issuecomment-2640637956