Implementation of the Custom Property object.
It stores a name/value pair
– saveValue
– colorValue
If the property stores a color, this returns a NSColor object
- (NSColor *)colorValue
a NSColor object
It converts a comma separated list of strings into a color. e. g. 63,165,53 will be green
replaces single quotes with tick marks and removes all none ascii chars.
- (NSString *)saveValue