How do I get the GUI Icon to stretch?

Okay, searched everywhere and still haven’t gotten a good answer. I want the cards to be the texture of the button, and despite the fact that the container is a long rectangle, I can’t get the guicontent image to scale to anything that’s not square. Works great for square icons, but I need these cards to be card shaped.

I’ve really searched everywhere. Any help?

I was able to solve my problem, it seems. I had to redo the matrix a bit to get the gui elements to scale correctly, and redo the shape of the buttons somewhat to get the proper proportion. The GUI button fixed height will resize it, but it’s always proportional, which is a pain, so the proportion has to be correct in the first place.