UI Toolbox for UI Toolkit
A themeable UI Toolkit toolbox for Unity runtime UIs: an MDI window system with docking, tabs and saved layouts, and 70+ controls that follow one --tb-* variable contract.
Features
MDI windows
Drag, resize, snap, minimize, maximize, tab groups and dock zones inside a workspace.
Saved layouts
Save and load layouts, sessions and named layout presets.
Themes
Dark, light and high contrast themes, text sizes and style families through one --tb-* variable contract.
70+ controls
Charts, data grids, pickers, dialogs, notifications, a log view and more in UIToolbox.
Animations and sounds
USS animation presets, an animation editor window and UI sound sets.
Game screens
Example scenes for a main menu, settings, an inventory, a shop, a HUD and more.
Examples

Assets/UIToolbox/DemoMenu.unity
Assets/UIToolbox/Examples/Scenes/Declarative.unity
Assets/UIToolbox/Examples/Scenes/WorkspaceDemo.unity
Assets/UIToolbox/Examples/Scenes/Styles.unity
Assets/UIToolbox/Examples/Scenes/Planets.unity
Assets/UIToolbox/Examples/Scenes/Kingdom.unity