At this point, you will see the Appearance window overlaying your browser. Click on the Skin tab if it is not already selected. At the top of the window are two radio buttons, labeled Show installed skins and Find more skins. Show installed skins, selected by default, displays all of the skins currently installed in your browser. In the example below, Opera Standard and Windows Native are listed.
To switch the active skin, simply click on its name. You will notice that the change is applied instantly.

