[v4.4.dev7] Color picker is unusable and flashes rapidly between black and white

[HerrSersch]

Tested versions

• Reproducible in 4.4.dev7, was working in 4.4.dev6
• Introduced in 9fece03, where changes to the color picker were made

System information

Godot v4.4.dev (9fece03) - Linux Mint 22 (Wilma) on X11 - X11 display driver, Multi-window, 1 monitor - Vulkan (Forward+) - dedicated NVIDIA GeForce RTX 2060 SUPER (nvidia; 550.120) - AMD Ryzen 5 7600 6-Core Processor (12 threads)

Issue description

Edit: The problem seems to be specific to Linux.

It's no longer possible to pick any colors with the color picker. Using it spawns a box under the cursor which rapidly flickers back and forth between black and white.

2024-12-25.01-47-06.mp4

Steps to reproduce

• Open any color picker (2D, 3D, doesn't matter)
• Hover over anything

Minimal reproduction project (MRP)

N/A

[Chaosus]

Cannot reproduce on Windows 11, probably a Linux-related issue.

[mk56-spn]

Can confirm this happens . But strangely enough only in editor. The in game colour picker sort of freezes the screen but still allows colours to be selected properly

[HerrSersch]

Thank you both for looking into it. I can't reproduce it on Windows either, so it really seems to be specific to Linux.