The single-click image appearance is perhaps not the best - it depends upon the mouse cursor to still be slightly moving to appear - sometimes a bit hit and miss.
Lets see if we can improve this - maybe using a Gtk.Overlay with a timer event to display rather than displaying the combined picture on mouse-move as present.
Also investigate if there is a display refresh method we can use when the mouse in in the general vacinity.
The single-click image appearance is perhaps not the best - it depends upon the mouse cursor to still be slightly moving to appear - sometimes a bit hit and miss.
Lets see if we can improve this - maybe using a Gtk.Overlay with a timer event to display rather than displaying the combined picture on mouse-move as present.
Also investigate if there is a display refresh method we can use when the mouse in in the general vacinity.