If it's IPad, draw with your fingers. If you're on PC, draw with your mouse cursor. The colour palette allows you to change the colour into one of these twelve colours: Black, Grey, White, Red, Orange, Yellow, Light Green, Dark Green, Light Blue, Turquoise, Dark Blue, and Purple. The eraser tool allows you to erase stuff you drew. If you press the Erase All button, it will ask you to confirm if you actually want to erase all. You can change the thickness of pen, or if you have eraser selected, the eraser ny the slider.
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