Blurred Edges with Button Box Image

Hey guys,

I’ve got a simple 256x256 bit image with a white box in it with 8px of rounded borders.
I wanted to use this to make a slightly rounded button for Unreal.
This has been surprisingly complicated, and now there’s blurring in my button.
Does anybody know why this is and how to fix it?
I just want a rounded button!
Is there another way to accomplish this task?

It looks like it’s stretching the middle part across the whole bitmap - One way you could do it could be like you’d create them in HTML - create a grid layout and put the corners and edges in separate items in the grid as their own images, the corners and the vertical sides using the dimensions of the images and the others stretching…