def color_floodfill(x, y, fill)
      target = pixel_color(x, y)
      color_flood_fill(target, fill, x, y, Magick::FloodfillMethod)
    end
def color_floodfill(x, y, fill)
      target = pixel_color(x, y)
      color_flood_fill(target, fill, x, y, Magick::FloodfillMethod)
    end
Set all pixels that have the same color as the pixel at x,y and
 are neighbors to the fill color