Wayland Color Management support has just been merged into master!

[Dmitry Kazakov]

Just for anyone interested, here is a direct link to the testing AppImage
package:

https://files.kde.org/krita/testing/wayland-color-management/krita-6.0.0-prealpha-4a5c0e584d-x86_64.AppImage

On Tue, Sep 9, 2025 at 3:08 PM Dmitry Kazakov <dimula73 at gmail.com> wrote:

> Hi, all!
>
> WARNING1: Wayland HDR support is **NOT** implemented yet, only SDR color
> management!
> WARNING2: The support is tested against KWin only, the status of other
> compositors is unknowns.
>
> Just wanted to let you know that Krita has just got Wayland color
> management support. If you have the Wayland compositor properly configured
> (and the compositor doesn't have bugs [1]), then Krita should run in
> "preferred surface color space" mode and handle the colors properly.
>
> How to test:
>
> 0) Have Krita built with Qt6 (vanilla or patched, doesn't matter)
> 1) Configure your Wayland compositor to use a proper display profile for
> your screen
> 2) Force Krita to use Wayland: `export QT_QPA_PLATFORM=wayland`
> 3) Start Krita, open any colorful image
> 4) Open Settings->Preferences->Color Management->Display
> 5) Check "Enable canvas color management" (no restart is needed)
> 6) In "Canvas surface color space" select "Preferred by operating system"
> (no restart is needed)
>
> Now the colors of your image should be perfectly correct.
>
> You can check the current state of the color management in a special
> report:
> Help->Show Color Management Information
>
> What needs to be tested:
>
> 1) Color Proofing
>    1) Press Ctrl+Y to enable color proofing
>    2) Go to Image->Properties->Color Proofing
>    3) Try to proof in different modes: "display" and "paper", the view of
> the image should change accordingly
>
> 2) Move Krita window between different screens. Krita should change the
> surface format to adapt to the values of
>     the new screen (you can verify it in Help->Show Color Management
> Information report)
>
> The builds will be available in tomorrow's nightly pipelines. Please take
> it into account that Qt6 builds are **not** uploaded to CDN site and should
> be fetched directly from the pipeline!
>
>
> [1] - KWin 6.4.4 has a bug when changing the rendering intent of the
> surface. It doesn't apply the change. The bug will only be fixed in KWin
> 6.4.5. Right now Krita has a hardcoded workaround for this bug, though this
> workaround may theoretically cause crashes.
>
> --
> Dmitry Kazakov
>


-- 
Dmitry Kazakov
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