So basically same as the old version just cleaner and with more colors select the color you want to work with adjust the width according to your need, and don't scribble to fast, erase slowly and it'll be fine, it works with the tip of the mouse not the tip of pencil, (the pencil is just there for looking nice and all i hope you understand )
me https://scratch.mit.edu/projects/507282664/ (older version)