Many thanks - this seems to give me the current value of CC but not all the possible values
Try this:
Hold down the control key and select WeatherCat.app in your applications folder.
Choose "Show Package Contents" in the popup menu.
In the "Contents" folder that appears, there will be a "Resources" folder.
The "Resources" folder contains files whose names look a lot like all the possible CC values.
Be careful not to change anything while you are examining the package contents.