Hello. I started to learn Unity a month ago. I have a question about Button Navigation(If I have a mistake where I should question, Sorry.). When I use Navigation to manipulate Buttons by KeyBord, Selected Button’s color doesn’t change highlight color. However, when I select Button by mouse, it works correctly. Is this Unity’s
specification? Please give me answer.
We would need some code to help 
Gracias por tu respuesta!
You can use the buttons to move through menus. There are four navigational buttons that you can use to move throughout a menu: up, down, right, and left. Each button corresponds to the direction that you can move in a menu.