Customize background with photos from my camera roll. Customize font color. Be able to set alarm with songs from my library
Being able to set calendar background to any color or picture we want from our iPhones photo album. 
Being able to set font color and calendar day numbers to any color we want
Being able to set event alarm notification sound to any song in our iPhones library. Because some people like me can't hear the notification sound that comes with this app. 
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Novadestin
    
 commented
    
  As one of many who suffer from photophobia, being able to change the calendar background to black with white font would be very helpful!! It is NOT just about eye candy, it is about eye PAIN!
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Jeff
    
 commented
    
  To me this is, for most people, eye candy. I think it adds minimal functionality of practical use - yes, it might really help a few people, but I suspect not many.
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Anonymous
    
 commented
    
  Yes,
Not being able to Chang font color is a serios limitation. - 
      
Damon
    
 commented
    
  Fantastic Idea!
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Damon
    
 commented
    
  Note: PocketLife Calendar has this feature and it works really well, it would be a shame to have to switch apps.