| Face | Description | CSS class |
|---|---|---|
| "Up" | Shown when the user does not press or hover over the button (default face). | - |
| "Down" | Shown when the user presses and holds the mouse down. | down |
| "Disabled" | Shown when the button is disabled. See {@link #setEnabled(boolean)}. | disabled |
| "Hover" | Shown when the user hovers over the button. | over |
| |