The App Icon must have a 'buffer' space around it to maintain legibility and visual impact. No other graphic elements such as typography, rules, pictures, etc., should infringe upon this space.
The minimum free space equals 75% of the height of the U within the Icon.
Note: In some cases, exceptions to the free space minimum may be made for large format items such as banners, billboards, signage or on the actual IPhone. Please contact the Marketing department prior to releasing final art.