Drawing a realistic chalkboard.

~ Feature Description (Full Version) ~
1. Chalks : Switching 7-color Chalk.
2. Remover : Clearing the canvas or drawing line.
3. Backboard : Switching Background Board.
4. Album : Save / Load / Remove the picture.(20files)
5. Camera : Saving Pictures folder to the canvas.
6. No ADS.

~ Feature limitations (Basic Version) ~
1. Chalks : Switching 4-color Chalk.
2. Remover : Clearing the canvas or drawing line.
3. Backboard : Switching Background Board.
4. Album : Save / Load / Remove the picture.(4files)
5. Camera : Saving Pictures folder to the canvas.

Notes. You cannot use existing data, such as pictures, as a result of re-creating the app.