I'm wondering if there's any risk to see the app rejected from the AppStore (iPhone app) if I modify the existing UITabBar making it slightly taller. I'm working on a custom uitabbar with custom background pattern that is also just a little bit taller (8px) than the default one. It additionally has a raised central button.
I really don't see why this could reject the app but I thought I would better ask first since it's quite a lot of work implementing this custom design and I might have overlooked some of the HIG guidelines/rules.
Many thanks, Tomas
There are tons of apps in the AppStore with custom tab bars, starting with some of the most popular ones like Instagram so you should be safe.