Composite
Composite components combine several basic components into a self-contained unit with its own behavior: pickers with dialogs, editors, charts, tables and lists, forms and the frame of an application.
Many of them live in their own package below presentation/ui, e.g. presentation/ui/picker or
presentation/ui/form. The snippets import go.wdy.de/nago/presentation/ui with a dot, like the
gallery they are taken from.
See also Basic, Layout and Feedback & Overlays.