Hi @xanderfrangos,
Thanks for providing the beta build!
I noticed that brightness control works properly on the Studio Display XDR under Windows, but on the Pro Display XDR, brightness adjustment is currently unavailable (since the Pro Display XDR does not expose standard DDC/CI controls and uses Apple's proprietary USB HID interface instead).
It would be awesome if support for the Pro Display XDR could be added in a future update or beta build. Many thanks for your continuous work on Twinkle Tray!
Best regards,

Hi @xanderfrangos,
Thanks for providing the beta build!
I noticed that brightness control works properly on the Studio Display XDR under Windows, but on the Pro Display XDR, brightness adjustment is currently unavailable (since the Pro Display XDR does not expose standard DDC/CI controls and uses Apple's proprietary USB HID interface instead).
It would be awesome if support for the Pro Display XDR could be added in a future update or beta build. Many thanks for your continuous work on Twinkle Tray!
Best regards,