Many thanks for your assistance.
I spotted my mistake immediately after reading your example code, but didn't
see it while staring at my code for hours. I had named the signal
'entered-notify-event' instead of 'enter-notify-event'. I suppose I had been
conditioned by signals given in past tens
Hello,
"At a first glance at two or three examples their code looked comparitively
easy to me." should also mean, that i am far from being an expert in these
things. The whole matter is also branded with "Theming". But a theme is more
a .gtkrc (please find out yourself, what that is) for a given
