I'm trying to create my own board game, but can't get the triggers right. I have a box on the first slide, which triggers to a question on a separate slide. When you return back to the first slide, I'd like a green tick to appear on top of the box to confirm it's been done. The green tick is in a layer and I've added a correct state to the tick and 'Change state' trigger to the base layer with a condition. I've also added another trigger to set question counter equal to 1 when the user clicks the box.