You'll change the color of the Fall Leaf brush in the artwork.
Before you change the brush color, it's helpful to understand how Illustrator applies color to brushes.
To change the color of Art, Pattern, and Scatter brushes, you use one of three colorization methods—models for applying color to the artwork in a brush. To change the color of Calligraphic brushes, you simply select the brush and choose a stroke color. (See Lesson 3, “Painting,” for information on choosing a stroke color.) You can change the color attributes of a brush before and after you apply the brush to artwork.
When you apply a brush to artwork, Illustrator uses the current stroke color for the brush only if a colorization method is ...