Color picker changes hue when changing value

[QbieShay]

Godot version

v4.0.alpha.custom_build [fefa3e941]

System information

Linux Fedora, Radeon RX 590

Issue description

Color picker can change the hue of a color when changing the value on the visual bar.

https://user-images.githubusercontent.com/7917475/189674520-0e0041c0-6985-4297-bfc3-e3f2ac24ac2e.mp4

Notice how the color jumps here:

Steps to reproduce

Use the color picker, set hue to dark magenta, drag the value slider on the side of the circle.

Minimal reproduction project

No response

[fire]

Created some videos for Qbieshay with Krita and Godot Engine. The Krita shows the "HSV circle" in regular and in lab space. The Godot Engine video show the preferred workflow I designed using OKHSL.

https://user-images.githubusercontent.com/32321/189914618-310ea533-1153-4564-a503-43615b5d63e0.mov

https://user-images.githubusercontent.com/32321/189914751-f202e3de-3d59-4f73-8905-2814d4f6afad.mov

https://user-images.githubusercontent.com/32321/189914809-ce2f5a78-077c-47d9-86d1-ab539f9f211e.mov

[fire]

Does this pr help? https://github.com/godotengine/godot/pull/67534

[lostminds]

Could maybe be related to #68286 issue (seems like the wheel preview is rendering HSL colors for HSV values)

[kerstop]

I think this is actually behaving as intended. in the original video the color wheel is in the OKHSL mode which uses the Oklab color space. The vertical bar on the right is not being passed into an hsv function but the L parameter of oklab. On this site if you change the L parameter you can see that it can effect the available hues.

While I couldn't find a color picker that demonstrated the same wiggling, if you compare the difference between oklab(10%,50%,50%) and oklab(5%,50%,50%) on this converter website you can see that changing the L parameter also changes the hue there too.