If you want to use grid in your painting then click on grid and if you want to hide grid click on board. If you click grid by mistake then write no in the answer box. If you want to use ruler then click on ruler and again click on the ruler button to hide the ruler if you want to set a position to ruler or if you want to make your ruler stop to follow your mouse pointer then click anywhere on the white board. The ruler is draggable. THANK YOU.
i made this by my own.
