Better blue color

Fix the official blue color.

Add blue color

A new official blue color has been added. This color is currently used in Play applications / Letterbox for notification purposes.

This version also modernises the project with Xcode 9.3.

Maintenance release

This version modernises the project with Xcode 9.

Image processing

A new image processing category has been added.

First official release

This release mostly focuses on standard fonts and sizes depending on iOS settings.