Here are the classes, structs, unions and interfaces with brief descriptions:

[detail level 12345]

▼NDlibFaceLandmarkDetector
▼NExtensions
CDlibDebug	Dlib Debug utilities
CDlibOpenCVUtils	Utility class for the integration of DlibFaceLandmarkDetector and OpenCVForUnity
▼NUnityIntegration
▼NHelper
▼NInteraction
CDragRotationController	DragRotationController A component that rotates a target GameObject based on pointer drag input. The rotation is calculated from the pointer delta movement, allowing intuitive drag-to-rotate interaction. Supports both mouse and touch input through Unity's Pointer Events system
▼NUI
CFpsMonitor	FpsMonitor Displays FPS and optional key-value diagnostics in a screen overlay, plus a bottom console bar for status messages. UI is created at runtime from a Canvas prefab and scales with screen resolution via Canvas Scaler
CDlibEnv	Dlib Environment utilities
CDisposableDlibObject	Base class for Dlib C++ wrapper objects that hold a native pointer in _nativeObj
CDisposableObject	Base class for disposable Dlib wrapper types implementing the standard dispose pattern
CDlibException	The exception that is thrown by DlibFaceLandmarkDetector
CEngineLog	Centralizes engine-specific log output
▼CFaceLandmarkDetector	Face landmark detector
CRectDetection	Represents the detection result of an object, including its bounding rectangle, detection confidence, and weight index
CILogger	Abstraction for engine-specific log output
CNativeLibraryName	Centralizes the native Dlib library name used by DllImport
CApplicationException
CICancelHandler
CIDisposable
CIDragHandler
CIPointerDownHandler
CIPointerUpHandler
CMonoBehaviour