Floods or fills a consistently colored area of an image layer with paint.
The color of paint that fills the area of the image layer you click.
Controls how see-through the paint that fills the area of the image layer you click is. Paint with a low Color Opacity is more transparent than paint with a high Color Opacity. The valid range is 0 - 1.
Controls the range of colors that are filled. A low value fills pixels having a color similar to the color you click. A high value fills pixels having a broader range of colors. The valid range is 0 - 255.