Flat design is a simple, common graphical style user interface (UI), software and web design. Flat style contrasts with skeuomorphism, design approach that seeks to bring the real world effects of items that are represented.
Skeuomorphic icons representing the functions of the phone, for example, usually images that resemble real-world cell phone, complete with shadows, highlights and some level of detail. Its flat design colleagues, on the other hand, typically graphic images are simple, recognizable and representative but with no effort to mimic the 3-D effect.
Flat design theme by Wb7themes with interface Flat, themes for nokia s40 240×400 eg; Asha-311, Asha-310, Asha-309, Asha-308, Asha-306, Asha-305. cool with a flat element with flat colors too, flat custom icons, custom dialer background, volume, alarm and many other custom style