Hit 'C' to show and hide the color picker. This also returns it to its default position, if for example you dragged it off the stage. 'Stabiliz.' slows down the brush to make lines smoother but less accurate. 1 means it exactly follows the mouse, 4 means the brush slowly moves toward the mouse. To the left is a preview of the brush color (but not the size.) TO SAVE: right click on the top bar and select 'Save image as' while the color menu is hidden.