I'm using the "GUI button" action to create buttons for my game menu. I'm using images as buttons, here's what they look like!

For some reason, even when the button size allows for the image to be displayed at its full width, it stays squished horizontally. I added a black background to the button to show the size of the button vs the size of the image being displayed:

I'd like for the button image to display at its actual width/height ratio, but for some reason it stays squished. I'm not sure what I'm doing wrong, has anyone seen this before? Here's the way I'm using the action:

If anyone has any ideas I'd be thankful!