Hello I’m using the default GUI system and art assets to create this GUI. However the long light blue bar is stretching and not having nice rounded edges closer to the the way the edges of the red bar look. I know I need to slice the sprites in the sprite editor but I’m unsure exactly how to do that. Any help you could give would be appreciated.
Find the sprite in the project hierarchy. Click sprite editor. Then from there you can manually cut out the sprites you want or if someone has created a sprite sheet properly Unity can do this automatically.
After you’ve sliced the image in the Sprite Editor using the way @cdrandin or http://forum.unity3d.com/threads/sliced-image-type.264893/ explains, then you may need to pump up the Pixels Per Unit on the sprite, maybe 300 instead of 100. The goal is to get the Pixels Per Unit high enough so the corners of the sliced sprite maintain their aspect ratio.