Thanks to this Brian's idea (i.e. from another, unrelated project discussion, but now used also in this project), now my "RGB 3D sliders" project is really interactive.
(If opening it directly in Snap!, then make sure to set your browser Zoom setting to 50% (in Chrome), otherwise you won't be able to see it whole stage because it is very big (it has to be in order for pen to move up to 255 steps along each one of the three axes).)
Hmm, I am not kid anymore, but as a kid I was raised up by my parents who were both teachers so I am good only at reading, writing and translating books, and not much else (although I ended up working as a GIS database specialist and analyst). I wish I had skills for building houses (or at least my wife would want me to, because she would like to live in one instead of living in an apartment).