The fill tool applies color (or "paint") to a large area of the image. The Icon for the Fill Tool resembles a pouring jar of paint. Just like if you were pouring a liquid in real life, the Fill Tool’s "paint" will fill an area’s shape with color.

You have to be careful when using the Fill Tool for this reason: if you click in an unbounded area of the image, the color will "spill" out and fill more of the image than you originally bargained for, possibly obliterating parts of the image that you wanted to save. Look closely before applying the Fill tool to an area to make sure it is bounded on all sides and that no "paint" can "seep out" and get where it’s not supposed to go. If this happens by accident sometime, don’t panic. Just Undo the Fill tool by pressing Ctrl-Z, find the "leak" and close it with the pencil or line tool, and then re-apply the Fill.

There are no special options for the Fill Tool.

Example:

  In this example, I used the Fill Tool to fill in the the different regions in this abstract composition with different colors.