Hey Lwmorgan- When you have not made a move for a little while the game gives you a hint of the next move that you could make. So it highlights a candy for you to see :-) Can be useful when you are completely stuck.
Oh I know what you mean!! It’s not the candy they are hinting at, this is a candy with brackets around it, or parentheses around it. Personally I think it’s only it’s just in the gaming program. I’ve always wondered that. 👍