[Windows?] Hue shift on semi-transparent layers

[Huliiiiii]

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• Completed

Describe the bug / provide steps to reproduce it

VsCode:

Zed:

We can notice that on Zed, the hue of semi-transparent layers is skewed towards the higher value color, and this shouldn't happen.

Environment

Zed: v0.151.0 (Zed Dev 2856842)
OS: Windows 10.0.22631
Memory: 31.9 GiB
Architecture: x86_64
GPU: NVIDIA GeForce RTX 2060 || NVIDIA || 556.12

If applicable, add mockups / screenshots to help explain present your vision of the feature

No response

If applicable, attach your Zed.log file to this issue.

Zed.log

[JunkuiZhang]

It seems that the Blade rendering backend has some color issues on Windows. I tested your #0080ff80 example using the One Light theme, and here’s what I observed:

• Blade backend: The color appears as #b7c9fc
• On macOS: The color appears as #7cbdfd
• In my DX11 implementation from windows: [WIP] A DirectX 11 backend prototype #13684: The color appears as #7dbdfd

The DX11 backend is very close to the macOS results, whereas both differ noticeably from Blade.

[apricotbucket28]

This is because the Blade backend uses Linear instead of sRGB:

• blade: Text is rendered either too thick or too thin #13564