Custom backup UI does not follow Wok style

[alinefm]

The "Add Path" button does not have the Wok button style. (In fact, I needed some seconds to identify it as a button to be clicked). Also that button is not aligned with the content area. The 'Remove' button does not have the Wok button style and appears on grey out color which seems to be disabled but you can really click on it and remove a added path. Also the "Remove" buttons are not aligned on each line.