The Appearance tool is available by default and allows users to change the look and behavior of their Unity desktop. It opens to the Look tab (Figure 6-7) and allows you to change the background, theme, and launcher icon size. The Behavior tab (Figure 6-8) allows you to change whether or not the launcher will autohide, the reveal location (where you need to put your mouse in order for the launcher to reappear), and the reappear sensitivity levels.
Figure 6-7. Appearance tool; Look tab
Figure 6-8. Appearance tool; Behavior tab