Unusually dark screen when using Vulkan backend

[Pyxrs]

Description
When using Vulkan on any wpgu project, the output is much darker than when using DX12 or Browser WebGPU.
I should also note that this wasn't an issue on my Radeon card a year ago, but I'm not sure if it's the new graphics card or a WGPU update that caused this issue.

Repro steps

Reproduced using

• Windows 10 or Windows 11
• Nvidia Geforce RTX 3060
• This project specifically, but also the WGPU examples (https://github.com/gfx-rs/wgpu/tree/master/wgpu/examples)
• Use wgpu 0.12, 0.14, or 0.15 (untested on 0.13)

Expected behavior (using DX12)

And on the Learn Wgpu website

Observed behavior (using Vulkan)

Extra materials
I found a similar issue that could be potentially the same problem, but it was reported as fixed #1646

[teoxoy]

There is no release with the fix yet. Can you give master a try?

[Pyxrs]

Works as expected on master 👍

[teoxoy]

There will be a minor version release containing the fix next week.

[wez]

@teoxoy can you reference the commit that fixes this issue from this PR?
I didn't see an obvious commit in the history, and I'm not sure if 0.15.1 has the fix you mentioned or whether my users are running into a different gamma issue.

[teoxoy]

#3444 part of the 0.15.1 release should have fixed the issue.