ArtCanvas : draw & paint description

[Main Feature]
- Multilayer
- Palette (Color Mixer)
- Share & Export
- Realistic Oil and Water Brush effects

---------------------------------------------------Regarding the App Access Privilege----------------------------------------
To provide quality service, the app needs below app access privilege. You can use basic function of
app without consent of Optional App access privilege.

[Mandatory Access Privilege]
- Storage : To save/load your project or image files.

[Optional Access Privilege]
- Camera : To take a picture to insert into the project file.
- Telephone : To check network condition to use internet.