KConfig

It provides an advanced configuration system. 

KConfig Introduction

Persistent platform-independent application settings. KConfig is made of two parts: KConfigCore and KConfigGui.

KConfigCore provides access to the configuration files themselves. It features:

• Code generation: describe your configuration in an XML file, and use `kconfig_compiler to generate classes that read and write configuration entries.
• Cascading configuration files (global settings overridden by local settings).
• Optional shell expansion support (see docs/options.md).
• The ability to lock down configuration options (see docs/options.md).

KConfigGui provides a way to hook widgets to the configuration so that they are automatically initialized from the configuration and automatically propagate their changes to their respective configuration files.