How should flattening be implemented and how should it be applied?
The word flattening comes from the style and shape used in this design. It belongs to the two-dimensional world. A simple shape plus a plane without depth of field is a waste of flattening.
The core of this concept is to give up all decorative effects, such as shadows, perspectives, textures, gradients and other elements that can make 3D effects.
The borders of all elements are clean and tidy, without any feathering, gradients or shadows.
Take a look at the following cases, they are all materials that can be copied
Payment Settings Payment App Flat Design Concept
Application of flat design concept for planning list of events
Log in and register mobile app flat design concept