Here is a list of all files with brief descriptions:

[detail level 123]

src
Action
Action.h	Core type definitions used across FuncDoodle
Common.cc
Common.h	Defines the base interface for undoable and redoable editor actions
Core.cc
Core.h	Defines the base Action class for undo/redo functionality
Direction.h	Defines direction enum and context for selection movement actions
Frame.cc
Frame.h	Undo/redo actions for frame-level operations
Selection.cc
Selection.h	Undo/redo actions related to selection manipulation
Asset
AssetLoader.cc
AssetLoader.h	Centralized asset management system for images, audio, and fonts
LoadedAssets.cc
LoadedAssets.h	Global handles for textures and audio used across FuncDoodle
Audio
Audio.h	Audio data structures and PortAudio management
AudioManager.cc
AudioManager.h	Audio loading and playback system for FuncDoodle
Conf
Constants.h	Global constants used throughout FuncDoodle
FuncDoodle.h	Main namespace documentation for FuncDoodle
Core
App.cc
App.h	Core FuncDoodle application class and runtime control interface
AppSettings.cc
AppSettings.h	Runtime configuration and user-adjustable application settings
Grid.cc
Grid.h	Renders and manages the editor grid overlay
Manager.cc
Manager.h	Defines AnimationManager, the central coordinator for animation playback, timeline UI, and editor integration
Player.cc
Player.h	Defines AnimationPlayer, responsible for animation playback control
Drawing
EditorController.cc
EditorController.h	Core editor logic handling canvas interaction, painting tools, and stroke management
Keybinds
Keybinds.cc
Keybinds.h	Keyboard input system including key masks, shortcuts, and keybind registry
KeyHandler.cc
KeyHandler.h	Handles keyboard shortcuts and timeline-related input actions
Platform
Window.cc
Window.h	GLFW-based window abstraction for FuncDoodle
Project
DynArr.cc
DynArr.h	Dynamic container for storing animation frames in indexed order
Frame.cc
Frame.h	Defines pixel color structures and frame/image data containers
Project.cc
Project.h	Defines the ProjectFile class, which manages animation project data
Registries
PopupRegistry.cc
PopupRegistry.h	Central registry for UI popup state management
Rendering
FrameRenderer.cc
FrameRenderer.h	Responsible for rendering individual animation frames and canvas UI
Selection
Selection.cc
Selection.h	Defines selection primitives for editing regions of pixels
Test
Test.cc
Test.h	Lightweight testing framework for FuncDoodle
Tool
Tool.h	Defines editor tools, tool utilities, and tool-related keybinding logic
ToolManager.cc
ToolManager.h	Manages tools, tool state, and tool-related UI in FuncDoodle
UI
Gui.h	ImGui/OpenGL/GLFW integration utilities and file dialog wrapper
ImUtil.h	Small helper utilities for ImGui UI construction in FuncDoodle
Themes.h	Theme system for FuncDoodle UI styling
UIManager.cc
UIManager.h	Central UI rendering manager for FuncDoodle
Util
ExePath.h	Cross-platform utility for retrieving the current executable path
Macro.h
MacroUtils.cc
MacroUtils.h	Logging system, assertion macros, platform utilities, and build/config macros
Ptr.h	Convenience type aliases for standard smart pointers
TextUtil.cc
TextUtil.h	Static utility functions for measuring ImGui text dimensions
UUID.cc
UUID.h	Defines a custom 16-byte UUID (universally unique identifier)
Main.cc