Forgot to mention that now my plasma-org.kde.plasma.desktop-appletsrc file shows that containment 21 (i.e. my system tray widget) has org.kde.plasma.bluetooth and org.kde.plasma.volume--such entries were automatically added:
----------------------------------------------------------------------------- [...] [Containments][21][General] extraItems=org.kde.discovernotifier,org.kde.plasma.networkmanagement,org.kde.plasma.devicenotifier,org.kde.plasma.battery,org.kde.plasma.notifications,org.kde.plasma.mediacontroller,org.kde.plasma.clipboard,org.kde.plasma.bluetooth,org.kde.plasma.volume,org.kde.kdeconnect knownItems=org.kde.discovernotifier,org.kde.plasma.networkmanagement,org.kde.plasma.devicenotifier,org.kde.plasma.battery,org.kde.plasma.notifications,org.kde.plasma.mediacontroller,org.kde.plasma.clipboard,org.kde.plasma.bluetooth,org.kde.plasma.volume,org.kde.kdeconnect [Containments][25][General] extraItems=org.kde.discovernotifier,org.kde.plasma.networkmanagement,org.kde.plasma.devicenotifier,org.kde.plasma.battery,org.kde.plasma.notifications,org.kde.plasma.mediacontroller,org.kde.plasma.clipboard knownItems=org.kde.discovernotifier,org.kde.plasma.networkmanagement,org.kde.plasma.devicenotifier,org.kde.plasma.battery,org.kde.plasma.notifications,org.kde.plasma.mediacontroller,org.kde.plasma.clipboard [Containments][33][General] extraItems=org.kde.discovernotifier,org.kde.plasma.networkmanagement,org.kde.plasma.devicenotifier,org.kde.plasma.battery,org.kde.plasma.notifications,org.kde.plasma.mediacontroller,org.kde.plasma.clipboard knownItems=org.kde.discovernotifier,org.kde.plasma.networkmanagement,org.kde.plasma.devicenotifier,org.kde.plasma.battery,org.kde.plasma.notifications,org.kde.plasma.mediacontroller,org.kde.plasma.clipboard [Containments][7][General] extraItems=org.kde.discovernotifier,org.kde.plasma.networkmanagement,org.kde.plasma.devicenotifier,org.kde.plasma.bluetooth,org.kde.plasma.battery,org.kde.plasma.notifications,org.kde.plasma.volume,org.kde.plasma.mediacontroller,org.kde.plasma.clipboard knownItems=org.kde.discovernotifier,org.kde.plasma.networkmanagement,org.kde.plasma.devicenotifier,org.kde.plasma.bluetooth,org.kde.plasma.battery,org.kde.plasma.notifications,org.kde.plasma.volume,org.kde.plasma.mediacontroller,org.kde.plasma.clipboard ----------------------------------------------------------------------------- What about containments 25, 33, and 7? They are not linked to anything. Possibly it is garbage that was not cleared up after I added and then removed some system tray widgets for testing. They do not cause any issue whatsoever, but do you think it would be better to manually remove those sections?
