У вашего броузера проблема в совместимости с HTML5
Introduction to Unity's UI, making animated buttons, slicing the art, clicking to change sprites, and navigation between buttons
Affinity Designer: https://affinity.serif.com/en-gb/windows/
Check out my friend's channel: https://www.youtube.com/user/NthReview
If you are making a game, join this group and post your game progress, and see what other cool people are making: https://www.facebook.com/groups/829243203829609/