public function fill_color( $color, $alpha = 1 ) 
	{
		$alpha = $alpha * 127;

		// parse the color
		$color = CCColor::create( $color );
		$color = imagecolorallocatealpha( $this->image_context, $color->RGB[0], $color->RGB[1], $color->RGB[2], $alpha );

		// run image fill
		imagefill( $this->image_context, 0, 0, $color );

		return $this;
	}