Chalk Feature
How To:
1. Tap on the options button located in the top left of the mobile app
2. Tap on the "Chalk" button, a new toolbar will appear in the bottom left of the mobile app
3. Tap on the gears icon to select your color and chalk width
4. Tap on the chalkboard or gears icon to close settings window
5. Press and hold down on the chalkboard to draw
6. Tap on the trash can to delete chalk lines
7. Tap on the red close button to exit chalk feature