How do you make a nonsquare website icon?

Question by AV2247: How do you make a nonsquare website icon?
With a site like www.rottentomatoes.com the tiny picture that appears on the side of the address bar or in the journalism is tomato-shaped, not a tomato with a square white background (same with the Gmail envelope). How do you design an picture like this? Further, is there any way to make icons that have empty space in them? I.e. icons that are not geometric shapes and would seem to be written on top of the journalism ?

Best answer:

Answer by Tiny Princess
I would guess just make the background transparent rather than solid.

edit: either that or just make the background the same gray color as the tabs so it appears as though it’s not there.

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