code: public function getFileIcon( $fileType, $iconLib = 'cmti' ) {
  
  		switch( $iconLib ) {
  
  			case 'cmti': {
  
  				return $this->getCmtiFileIcon( $fileType );
  			}
  			case 'fa': {
  
  				return $this->getFaFileIcon( $fileType );
  			}
  		}
  	}
docs: By default it returns the icons from CMGTools IconLib library. The parameter defaultSet
  can be changed or it can be overriden to change default behaviour.
  
  @param type $fileType
  @return string