public function getColour()
    {
        if (null === $this->colour) {
            $this->colour = self::DEFAULT_COLOUR;
        }

        return $this->colour;
    }
public function getColour()
    {
        if (null === $this->colour) {
            $this->colour = self::DEFAULT_COLOUR;
        }

        return $this->colour;
    }
public function getColour ( ) { if ( null === $ this -> colour ) { $ this -> colour = self :: DEFAULT_COLOUR ; } return $ this -> colour ; }
Return the colour of the line in the widget.

@return string
Return the colour of the line in the widget .