Hi Pilou,

> yes when you draw first that easy but seems
> impossible if image is yet existing ;)

Yeah it won't work to modify the existing image, but it's not impossible to get the final result you want. Just delete the existing one and draw a new one and you will have it...

Does that do the job you want there? If so then I'm not sure if there is really a problem that needs to be solved.

- Michael