Use the mouse to draw Up and down arrows adjust size There is an upload image but you have to go into the code and put it in the image upload sprite, then press S to place it on your mouse pointer. Press "C" or the color button to choose color (from list or custom with Color, Saturation, Brightness color picking) Space to hide UI There is an Eraser option in colors Green flag does not erase
Have fun! Use the comments to give suggestions.