Creating stickers

[Simone]

This tool will give it the wanted shape:  https://brickhub.org/i/apps/pf.htm

Thanks Magnus. Now 93606 is ok.

Now I'm trying to do the same thing with 3040b Slope 45 ° 2 x 1 but although I thought it was easier I have some problems.
I'm trying to put a sticker on the sloped surface of the piece. As you can see from the attachments, I managed to fix it but it's the image in flipped.
It is true that I could flip the original PNG, but I would like to understand my mistake

Where am I doing wrong?


thank you