I'm currently using Unity 5 GUI system and having one issue with the Highlighted Sprite Button Script. Under the Button Script / Sprite Swap / Highlighted Sprite, I can keep the highlighted sprite to stay highlighted, but once I clicked outside the button, it goes back to normal or the highlighted state goes away.
I wanted to the highlighted button to stay on so that the end user know which scene they are in.
How can I keep the highlighted state on until I press another button?