So I have this game set up, I am going to have 12 levels in total for it and each level will be selectable from the title screen in the form of numbers. I want it so that when the player completes a level the corresponding number to that level on the title screen is highlighted, indicating completion of the level. But I also want that when the player completes the level 100% (finding all the collectables) the number on the title screen is highlighted in a different colour.
So I want to put this system in so that when the player comes back to the game after quitting, from the title screen he can see the levels he has completed, 100% completed and also not completed. But I have totally no idea how to do this. Does anyone have any advice or anywhere you can direct me to which could solve this?