Press U to toggle UI Click to Spray Paint E to change to erase mode Black and white circles change darkness level - and = keys increase and decrease line thickness Arrow Key's to Move Color Wheel is at the bottom left corner, doesn't need much explanation. [NOT MOBILE COMPATABLE]
was bored which led me to think of this idea, Darkness Levels also change the opacity when erasing, this happens since in the code I decided to do "erasing" by just changing the color to white when e was pressed. Anyhow that's how you get a grey color.