some mouse detectors (not 100% accurate) as of this project, <mouse down> only captures clicks inside the stage so doing <<touching m.p.> and <mouse down>> won't work heart, star, remix, and view aren't relevant in 'See Inside', TurboWarp, or forkphorus
music: Mario Paint - Data Robot (Paul LeClair Remix) https://youtu.be/jzYoeGtrSoM 'pop' from scratch library this project moves a sprite to each 'button' and checks if the mouse is touching the sprite
