Change detection on Linux works by listening to the notify::gtk-theme-name signal (in PlatformSupport.h/cpp). The g_signal_connect_data documentation states that a warning is emitted if a signal name doesn't exist. Do you see anything of that sort in the console?
On Mon, Feb 16, 2026 at 6:37 PM Christopher Schnick <[email protected]> wrote: > > I have the problem on 2 separate KDE systems now where the Platform > preferences map is not updated at runtime on KDE. The values on startup seem > to be correct though. > > My main testing system is a Debian 13 forky/sid testing system with KDE > version 6.5.3 from plasmashell -v.
