Fill pattern
For a closed element you can fill its area with up to 43 different patterns/textures , and any color. Go to the properties window and modify the Fill Shape area.

Fill color - is the background color of the shape.
Pattern color - is the foreground color of the pattern.
Fill Pattern - is the geometric pattern that you want to apply to your element.

The Patterns : 00 is no pattern; 01 is a solid, one-color pattern; 02 through 24 are texture patterns; and 25 through 42 are gradient patterns. The numbers to the left of the patterns dropdown list are just labels, and are meant to help you identify the applied pattern.