Welcome to Art Maker a simple paint program, to customize colors click "More", to customize colors you will see a preview there will be "Size" 1-4, "Brightness" and "Color" you tweak these values to get a color, Under these you will see a Eraser icon and Reset icon these are of course Eraser but the other one is Reset Colors, pretty explanatory it resets the color back to red. The top tools you see first are also pretty self explanatory, Change Shape, Save, Brush and Clear these do as said Change the Shape to a circle or square, the Save activates save mode to exit it, press "b", The draw tool is the brush when active it lets you draw on click (it wont draw straight if you go to fast!) and finally clear, it clears the canvas, self exploratory.