Add pages import
Add cross item
Add calibration
Implement cross item
Add cross
Increase default size of cross
Add settings wrapper
Expose Settings class to qml
Store values to QSettings object
Use settings to store calibration
Tweak values text
Move level to its own qml
Add level values string and use it
Add calibrate function
Use calibrate function
Remove settings property
Remove background color
Add filling for level item
Add level to cover page
Add opacity