Recently, Microsoft has issued a notice related to a newly discovered color bug on Windows 11. According to the official Windows 11 known issues bulletin, the problem seems to occur on certain HDR displays when using some image editing programs. The issue seems to arise out of some incompatibilities with color rendering Win32 APIs under specific conditions. The problem seems to be most common with the white color.
Here's how Microsoft describes the issue:
After installing Windows 11, some image editing programs might not render colors correctly on certain HDR displays.
[..] This issue occurs when certain color-rendering Win32 APIs return unexpected information or errors under specific conditions.
However, not every color profile management program is affected by the bug, confirms Microsoft. The firm's own various color settings in Windows 11 are also unaffected:
Not all color profile management programs are affected, and color profile options available in the Windows 11 Settings page, including Microsoft Color Control Panel, are expected to function correctly.
The company, however, isn't exactly sure where exactly the problem had its start as it has left the "Originating update" column as N/A. Perhaps the bug was present from the beginning and is only now starting to be reported on.
If you are a Windows 11 user affected by this issue, then you'll have to wait a while for a fix. Microsoft says that a resolution is coming in late January as it is currently investigating the issue.