rem listbox 10* addrow =" "
myicon= New Picture(100,40,32)
@Christian Schmitz Create a new picture in Xojo, draw the icon picture there scaled and than use the new picture.
Tried that. It seems that even using CopyPictureAndAlphaMBS() under Linux is not retaining the Alpha channel - or maybe I'm misunderstanding the procedure you're describing.
Except I'm not using a mask, but PNG files with an alpha channel. There is no mask to copy.