I plan to use Slido for a multiple choice quiz with about 40 questions of family trivia, to be presented at a family reunion with about 50 participants who will answer the questions on their iPhones.  I have 2 questions: Can I put a Leader Board on the screen at the end, showing what 3 participants got the most questions correct?   Also, can I make the participants' screen have background color or anything else like that to make the questions look more appealing, instead of just a white background and black lettered questions?  Thanks.