[Flashblock] icon invisible in themes != classic

[Mathias Helminger]

Hi

I was just trying to get the flashblock toolbar icon being displayed 
properly with the Pinball and Modern Theme. Insted of the flashblock 
item I only get an empty space of toolbar. The dropdown arrow next to it 
displays properly.
I then had a look at the flashblock folders and it seems that I need to 
create copies of the classic folder  in the flashblock jar.
but what exactly do I have to change inside the copied folder to make it 
work?
I guess I also need the internal name of the theme used, how can I look 
it up?

Regards
Mathias