- PangoRenderer — Rendering driver base class
- PangoFcFontMap — Base fontmap class for Fontconfig-based backends
- PangoFcFont — Base font class for Fontconfig-based backends
- PangoFcDecoder — Custom font encoding handling
- OpenType Font Handling — Obtaining information from OpenType tables
- Coverage Maps — Unicode character range coverage storage
- Engines — Language-specific and rendering-system-specific processing
- PangoEngineLang — Rendering-system independent script engines
- PangoEngineShape — Rendering-system dependent script engines
- Modules — Support for loadable modules
- Miscellaneous Utilities — Various convenience and utility functions
- Version Checking — Tools for checking Pango version at compile- and run-time.