To better keep track of events, the Calendar module uses categories, which are custom-defined labels that an event can be assigned to.  Some example categories are: 

      - Personal 
      - Work 
      - Holiday 

Users can add or edit categories by navigating to the Preferences module, in the Calendar tab. Categories can be assigned a name as well as a color, which will define the event’s color in the Calendar view. Each event can be assigned a single category. 


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