Paint Easter Egg - Hidden Drawing Tool Options

Open paint.

These eggs require usage of your ctrl key, so if you use ctrl to select a tertiary color, you will most likely want to select it to be the same as your primary color when using these eggs. (Tertiary colors are selected by holding ctrl while picking a color.)

To stamp, select part of the image and hold ctrl while dragging it.

To scuff, select part of the image and hold shift while dragging it.

To use brush pressure, hold ctrl and press - or + on the keypad while drawing, spraying, or using a shape tool.

To draw straight or diagonal lines with the pencil, hold Shift and move the mouse in that direction.