Facebook tab application - application controlled icons / tab translations?

Is it possible to control a tab icon?

1. over tab settings?
2. over an API?

Why I'm asking: I'm trying to implement top company information int开发者_JAVA技巧o tabs. It's just one application. I can manually change the icon if I create a new application for each tab. Is it possible to create one application that controls loaded iframe URL and change the icon from tab settings?

I don't think this is possible. Have a look at the tabs section in the page document, you can only update three parameters: position, custom_name and is_non_connection_landing_tab