[mapguide-trac] #485: Fix theming function signatures

[MapGuide Open Source]

#485: Fix theming function signatures
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   Reporter:  waltweltonlair  |       Owner:  bentrumbore
       Type:  defect          |      Status:  new        
   Priority:  medium          |   Milestone:  2.1        
  Component:  General         |     Version:  2.0.0      
   Severity:  major           |    Keywords:             
External_id:                  |  
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Ticket URL: <https://trac.osgeo.org/mapguide/ticket/485>
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