Hi, I’m try to make round button dialog. But I got a problem!
When size of it change. The border is look bad.
Anyway I make them stay same rounded border?
55140-untitled.png

In this thread and there’s also a linked Unity Tutorial in it, they explain how to “9-slice” your sprite - splicing it into 9 sections, corners that don’t expand, sides that expand in one direction, and center that expands in all directions. This is what you’re looking for.

http://forum.unity3d.com/threads/how-to-create-a-9-sliced-sprite-and-use-it-on-new-gui.263751/