Colour management on Wayland/KDE

Hi,

I tried to enable colour management on Wayland in KDE 6.3 from Debian
13, with digiKam 8.7 running from the appimage.  When I set a system
monitor profile in KDE settings, Darktable, Firefox and Brave display
the same colours.  But I cannot find a setting in digiKam to use the
system colour profile.  I can see “Built-in display” profile, whatever
it is, in the monitor profile selector; when I try to use it, colours in
digiKam are somewhat different (and apparently wrong) from the other
applications.

Is there a way to use a KDE/Wayland system monitor profile in digiKam?
If yes, how to set it?

Thanks,
Milan