MUI X Tree View Package Tiers | Package | Import | Features | |---------|--------|---------| | | , | Expansion, selection, keyboard nav, icons (free, MIT) | | | | Drag-and-drop reordering, virtualization | | | | Data-driven tree from items array (free, MIT) | Always import from or . --- 1. SimpleTreeView — Basic Usage uses declarative JSX children. Each has a required and . Controlled Expansion and Selection --- 2. RichTreeView — Data-Driven renders from an array. Each item implements . Custom Item Type with Extra Fields --- 3. Lazy Loading — Async Data Source Fetch children on demand when a…