public function add( Icon_Picker_Type $type ) {
		if ( $this->is_valid_type( $type ) ) {
			$this->types[ $type->id ] = $type;
		}
	}
public function add( Icon_Picker_Type $type ) {
		if ( $this->is_valid_type( $type ) ) {
			$this->types[ $type->id ] = $type;
		}
	}
public function add ( Icon_Picker_Type $ type ) { if ( $ this -> is_valid_type ( $ type ) ) { $ this -> types [ $ type -> id ] = $ type ; } }
Register icon type

@since  0.1.0
@param  Icon_Picker_Type $type Icon type.
@return void
Register icon type