UI Components
Some common UI controls can be created by adding nodes. Click the + Create Node button in the top left corner of the Hierarchy panel, then select UI to create the desired UI node, and the corresponding UI component will be automatically mounted to the node.
Other UI components can be added by manually selecting the node in the Hierarchy panel and clicking the Add Component -> UI in the Inspector panel:
For the specific description of each component, please refer to the corresponding component description documentation.