This inheritance list is sorted roughly, but not completely, alphabetically:

[detail level 12]

Csgui::Circle< Type >	Define a Circle with a center and a radius
Csgui::ClippingLayers	Handle clipping layers to only draw things in a given box
Csgui::CollageOptions	Options for collage
Csgui::Constraints	Store constraints on position for gui panel. Alignment always precede relative position
Csf::Drawable
Csgui::Gui	Implement gui following the immediate gui principles, like dear-imgui, but with more control over the textures used for widgets, sounds effects and animations
Csgui::GuiRender	Handle rendering for the gui
Csgui::Plotter	Plot function in a given range and level of sampling
Csgui::PrimitiveShapeRender	Render primitive shapes using vertex array
Csgui::FontSize	Font size container
Csgui::Frames	Store frames count and textures to ease serialization and for better interface
Csgui::TextureCollage::ImageInfo
Csgui::Layout	Allow to store and load Gui layou
Csgui::LayoutEntry	Data structure stored in Layout. Its a dumb std::variant basically..
Csgui::Line< Type >	Define a line with two points
Csgui::ObjectPool< Object, ObjectId >	: implement a generic pool of objects that are stored continuously in memory without fragmentation, and is in theory thread safe
Csgui::Panel	Store panel posiiton, size and some parameters
Csgui::PlotRange	Plot range for an axis
Csgui::Polygon< N >	Polygon is a series of N points, ranged in clock-wise order and that form a convex shape
Csgui::ResourcesHolder< Resource, Identifier >	Load and hold resources of all kind (image, music, etc.), that can be retrieved with Identifier that are comparable. Note that Resource should implement a "bool loadFromFile" function for this holder to work. sf::Font use openFromFile, but it's handled with type test
Csgui::SoundPlayer	Allow to play spatialized sounds
Csgui::Style	Define gui font style and padding
Csgui::TextContainer	Store text accessible with a string key, with option to load and store text for a given tongue, so it has simple support for localisation
Csgui::TextDrawOptions	Store options for drawing text
Csgui::TextOptions	Store text options : boxSize, centered, type, etc
Csgui::TextureAtlas	Contains texture position and sub-box of all sprites for a given sprite sheet. Animations ca be handled with the following restrictions:
Csgui::TextureCollage	Allow user to make a collage of several textures in one image
Csgui::TextureMeshes	Compute texture meshes for a given texture map
Csgui::Tooltip	Store tooltip in a function with its parent widget ID
Csf::Transformable
Csgui::Gui	Implement gui following the immediate gui principles, like dear-imgui, but with more control over the textures used for widgets, sounds effects and animations
Csgui::GuiRender	Handle rendering for the gui
Csgui::Plotter	Plot function in a given range and level of sampling
Csgui::PrimitiveShapeRender	Render primitive shapes using vertex array
Csf::Vector2< T >
Csf::Vector3< T >
Csgui::WidgetAspect	Store data required to fully customize how a widget is drawn
Csgui::WidgetDrawOptions	Store options for drawing widgets
Csgui::WidgetOptions	Store widget options : tooltip, position, description
Csgui::Window	Small struct to ease use of beginPanel and beginWindow in Gui