Thank you very much! It works! It still works only if falloff density or scale is active, but it's already can be used!
As I said, I can and I've missed important detail from the tutorial video
. Just wandering if I'm not the only one who missed it, because by default blending mode set to color. May be it would be good to add the note about it to this tutorial.
P.s You attached not changed file - blending mode is still Color there, so I attached file with blend mode set to normal if someone else will want to use it