The instructions should appear on the help bar. But they are also here. X button- clear pen. Eraser button- equip your eraser + and - buttons- adjust your thickness level. 5 is thickest, 1 is thinnest. Colored buttons- Change colors. And t: displays the pen's thickness.
All costumes and scripts by me. Credit to scratch for the sound 'pop' Leave suggestions in the comments below :D
