I just saw this post on Defold’s Facebook page (completely missed it here on the forums, thanks @Oleg_The_Evangelist). I was wondering what were you doing with a Makey Makey and honestly this is just so cool! Good luck with it! If you showcase it somewhere, don’t forget to film people playing it.
*reins in impulse to install KTANE on my work laptop*
P.S.: Small OCD note: Add some inner padding to your atlas with the hearts, so it won’t show those sampling artifacts.