The Live Paint Bucket tool lets you paint faces and edges of Live Paint groups with the current fill and stroke attributes. The tool pointer displays as either one or three color squares, which represent the selected fill or stroke color and, if your using colors from a swatch library, the two colors adjacent to the selected color in the library. You can access the adjacent colors, as well as the colors next to those, and so on, by pressing the left or right arrow key.
The Live Paint Bucket options let you specify how the Live Paint Bucket tool works, choosing whether to paint just fills, just strokes, or both, as well as how to highlight faces and edges as you move the tool over them. You can see these options by double-clicking the Live Paint Bucket tool.