Odd behavior under Wayland

[Bill Gee]

I am seeing some odd behavior when running Tellico under Wayland.  This 
is fairly easy to reproduce.  It does not happen when running under X.org.

Open a music database, then File - Import - Import Audio CD Data.  As 
the import proceeds, the main Tellico window changes its color palette 
to what looks like monochrome - Black and White!  Text can still be 
read, but most of the decorations and controls disappear.

Switching away from Tellico to another application and then back will 
restore the color palette.

The system is Fedora 40, nouveau display driver, Wayland window manager, 
and Tellico 3.5.4 as packaged in the Fedora repository

This is annoying but not a show-stopper.

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Bill Gee