ON Color Measure

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Update v3.1
- UI improvements
- Camera bug fixes
- Code optimization

Update v3.0
- Improves image resolution
- Minor updates on UI layout
- Bug fixes

Update v2.0
- Software crash fixed
- Minor UI improvement

Update v1.2
- Bug fixed: User manual cannot be displayed
- Bug fixed: Fail to open menu with menu button on main UI
- Code optimization / File size reduced