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docs/references/elements/Tree.md

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-# Tree : VisualElement
-This is the tree class. It provides a hierarchical view of nodes that can be expanded and collapsed,
-with support for selection and scrolling.
-
-## Properties
-
-|Property|Type|Default|Description|
-|---|---|---|---|
-|nodes|table|{}|The tree structure containing node objects with {text, children} properties
-|selectedNode|table?|nil|Currently selected node
-|expandedNodes|table|{}|Table of nodes that are currently expanded
-|scrollOffset|number|0|Current vertical scroll position
-|horizontalOffset|number|0|Current horizontal scroll position
-|nodeColor|color|white|Color of unselected nodes
-|selectedColor|color|lightBlue|Background color of selected node
-
-## Functions
-
-|Method|Returns|Description|
-|---|---|---|
-|[Tree:collapseNode](#tree-collapsenode)|Tree|Collapses a node to hide its children
-|[Tree:expandNode](#tree-expandnode)|Tree|Expands a node to show its children
-|[Tree:getNodeSize](#tree-getnodesize)|number|Gets the size of the tree
-|[Tree:onSelect](#tree-onselect)|Tree|Registers a callback for when a node is selected
-|[Tree:toggleNode](#tree-togglenode)|Tree|Toggles between expanded and collapsed state
-
-
-## Protected Functions
-
-|Method|Returns|Description|
-|---|---|---|
-|Tree:init|Tree|Initializes the Tree instance
-|Tree:mouse_click|boolean|Handles mouse click events for node selection and expansion
-|Tree:mouse_scroll|boolean|Handles mouse scroll events for vertical scrolling
-|Tree:render|-|Renders the tree with nodes, selection and scrolling
-
-## Tree:collapseNode(node)
-Collapses a node
-
-### Parameters
-* `node` `table` The node to collapse
-
-### Returns
-* `Tree` `self` The Tree instance
-
-## Tree:expandNode(node)
-Expands a node
-
-### Parameters
-* `node` `table` The node to expand
-
-### Returns
-* `Tree` `self` The Tree instance
-
-## Tree:getNodeSize()
-Gets the size of the tree
-
-### Returns
-* `number` `width` The width of the tree
-* `number` `height` The height of the tree
-
-## Tree:onSelect(callback)
-Registers a callback for when a node is selected
-
-### Parameters
-* `callback` `function` The callback function
-
-### Returns
-* `Tree` `self` The Tree instance
-
-## Tree:toggleNode(node)
-Toggles a node's expanded state
-
-### Parameters
-* `node` `table` The node to toggle
-
-### Returns
-* `Tree` `self` The Tree instance
-
-