It’s quickly accessible with the B key. This tool will allow you to draw colorful, thick, luscious lines. You can change the color on the far right side of the screen, or create a custom color
Press E to access the eraser when you need it.You can change the size of the eraser on the far left, and hold down left-click in order to erase anything on your screen.
Use the bucket tool to fill color. It can be used by pressing K. It’s a little glitchy, so look out for issues if you use it.
Use the eyedropper tool to remember what colors you created or edited. You can access it with the I key.
If you created a custom color, just press the I key on your keyboard, left-click on the spot you want, and voila! You’ve got your custom color back!
Press N to access the pencil tool. This will draw thinner lines, and it can be useful for more advanced detailing.