RFR: 8313424: JavaFX controls in the title bar [v56]

[Andy Goryachev]

On Mon, 17 Mar 2025 18:54:27 GMT, Michael Strauß <mstrauss at openjdk.org> wrote:

>> Implementation of [`EXTENDED`](https://gist.github.com/mstr2/0befc541ee7297b6db2865cc5e4dbd09) and `EXTENDED_UTILITY` stage style.
>
> Michael Strauß has updated the pull request incrementally with one additional commit since the last revision:
> 
>   enable preview features in tests

Standard windows buttons appear blurry and smaller at 100% scale:

![Screenshot 2025-03-18 143305](https://github.com/user-attachments/assets/08608f86-017a-41ac-95c6-60deb14456de)

For reference, here are other resolutions (I could not get 225% scale on my laptop) - scale is at the bottom of the main window:

![Screenshot 2025-03-18 142924](https://github.com/user-attachments/assets/604420b4-074d-49a7-99a2-caf2a0ea4079)
![Screenshot 2025-03-18 143044](https://github.com/user-attachments/assets/1eb94730-21e2-4c53-adcf-5ec08e3a49f6)
![Screenshot 2025-03-18 143152](https://github.com/user-attachments/assets/f91ceb24-ce8a-4d53-b554-b1de45c18424)

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PR Comment: https://git.openjdk.org/jfx/pull/1605#issuecomment-2734796223
PR Comment: https://git.openjdk.org/jfx/pull/1605#issuecomment-2734800080