Click the screen to set the lighting placement. Low Detail Mode should help with lower end devices running this project. The shading distance is basically the distance of the light source. Pretty much everything is customizable if you can figure out how the code and variables work!
Haven't been doing cool things with just the pen, and came up with this a few days ago. This is like a visual of my art style, which I don't think I've ever used yet. I added in tiny details to the movement to give a sort of personality to the character and I like how it looks.