Flat design takes the best aspects of minimalism and skeuomorphism and makes them work together. Like skeuomorphism, flat design looks friendly and approachable to users. But it does this by presenting a clear and engaging interface, rather than disguising and warping that interface to mimic something familiar. Like minimalism, flat design strips down visual elements to expose their essential functionality. But it's not as restrictive in the way it does this … the importance of ornamentation is recognized and utilized. via UX Magazine.