You can customize the radio plugin with the logo and colours of your station's styling.
Click on the Administration panel on the bottom of the plugin to manage your settings. (This option is only seen by the administrators of the Facebook Page).
Click on upload a logo to upload your station's logo image.
Do the same with the background of the plugin. Change the background colour to match the background image and adjust it's transparency to the one you like. Do the same with the colours of the player. At any time in order to track your changes and see how they affect the plugin, click on Save Changes and then View page.
There is only one small detail left to change in the styling of the plugin.
Go to the main page of your Facebook page. There click on the small arrow appearing next to all tabs.
Once you click it an edit button will appear on the right top of each tab allowing you to edit them. Click on the edit button appearing on the Radio plugin tab and select Edit Settings.
Here you can edit the Image that appears in the Tab and also the Tab name.
Clicking on Change on the Tab Image redirects you to a new page to make your uploading.