Built-in UI Components & Slots Overview

This group introduces reusable UI surfaces provided by relation-graph and how to extend them safely.

• Compare view-level and canvas-level slot layers for interactive custom DOM content.
• Customize toolbars, mini-toolbars, minimap behavior, and node expand-button presentation.
• Learn composition patterns that keep built-in controls and custom controls consistent.

Use this group when you are shaping the surrounding UI shell of your graph page.