Everybody loves colours. Great apps should use colours in clever and original ways. I have been recently spending a lot of time using Delphi XE5 for designing screens for mobile apps and must admit that I really like the way how iOS 7 is using colours and gradients. There is a lot of interesting information about iOS user interface design best practices at "iOS 7 Design Resources - iOS Human Interface Guidelines". Gradients look especially cool. It is so easy to use C++ or Object Pascal with...