Transparent imagebutton

Hi,

I'm trying to define an Imagebutton with a transparent image in it, but I can't get it right. The solution should work both on the Desktop and Device.

I'm sure this question has been asked before, but I can't find a working example.

Can someone point me to a working example ?

Thanks !
Tonny

The color of the upper left pixel determines the transparent color !

Attached an example.

Best regards.