Have not used my Navigator widget in a while and used it today and discovered this anomoly with the background colour of the list view control. It used to be a consistent colour.
Can you point me to the recent changes you have made for background colour in list view controls please.
Using
dlg.Control('listview1').bg = darkmode ? listbg_dark : listbg_light;
dlg.Control('listview1').textbg = darkmode ? listbg_dark : listbg_light;
to set the background colours.