Topics are themed question boxes that you will find on the game board. They will be represented by a question mark (?) and will be purple.
As soon as you land on a Topics box, you will be able to choose between different topics, as well as watch a promotional video to choose another specific topic or get new options.
Answering questions on specific topics will allow you to complete the themed goals. Each time you correctly answer a question on a new topic, a progress bar will appear; upon completion, you will receive a collectible frame or figure as a reward.
Both the frames and the figures can be equipped to use in your profile photo, or as a character to use in the different boards.
In the "Goals" section you will find the "Themed" tab, in which you can see the goals you have in progress, and what you need to be able to achieve them.