Button gets the .PNG image size wrong

I had set an image for a button but realized it was much too big.
I resized it and copied it to a new name, set the path to that new file, and the button stayed the same size, but with a blurry icon.

Here is the resized image :
D20_IMG_Bouton filtre vide gris fonce 50x50

Hello - toolbar buttons use three bitmap sizes - you need to edit all three for them all to look correct.


Oh damned, why do I end up here : this was intended for Grasshopper / Human UI

My question has nothing to do with Rhino’s buttons