O.K. I added a facebook app to the side of my facebook links. But it's showing up as a plain an开发者_如何学Pythond dull star. Can I change this image to something different?
Assuming you're referring to the bookmark icon (which is also used if your app is installed on a page tab) it's in your app settings, under 'Basic Info' -> 'App Images' -> Icon and should be a 16x16 image.
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