This is an application that can develop children’s drawing ability.The application can choose different types of line effects,and there are many functional options.Next to the slider, you can increase or decrease the thickness of the line by moving the slider.At the bottom of the wired button, you can create circular or rectangular shaped lines.Color,erase, undo,cancel,clear,save,etc.,so hope to create your graphic now.You can also change the background color by selecting the color and then clicking the barrel button at the bottom.I hope this application can help with painting!