The Brush tool paints brush strokes.

The Pencil tool paints hard-edged strokes.

The Color Replacement tool replaces a selected color with a new color.

The History Brush tool paints a copy of the selected state or snapshot into the current image window.

The Art History brush tool paints with stylized strokes that simulate the look of different paint styles, using a selected state or snapshot.

The gradient tools create straight-line, radial, angle, reflected, and diamond blends between colors.

The Paint Bucket tool fills similarly colored areas with the foreground color.