diff --git a/packages/components/src/renderers/data-display/tree-view.tsx b/packages/components/src/renderers/data-display/tree-view.tsx
index 03b24d38..49554ab2 100644
--- a/packages/components/src/renderers/data-display/tree-view.tsx
+++ b/packages/components/src/renderers/data-display/tree-view.tsx
@@ -6,12 +6,10 @@ import { cn } from '../../lib/utils';
 
 const TreeNodeComponent = ({ 
   node, 
-  onNodeClick,
-  isChild = false
+  onNodeClick
 }: { 
   node: TreeNode; 
   onNodeClick?: (node: TreeNode) => void;
-  isChild?: boolean;
 }) => {
   const [isOpen, setIsOpen] = useState(false);
   const hasChildren = node.children && node.children.length > 0;
@@ -85,7 +83,6 @@ const TreeNodeComponent = ({
               key={child.id}
               node={child}
               onNodeClick={onNodeClick}
-              isChild={true}
             />
           ))}
           
diff --git a/packages/plugin-charts/src/index.tsx b/packages/plugin-charts/src/index.tsx
index a4ef0d3b..ea804aca 100644
--- a/packages/plugin-charts/src/index.tsx
+++ b/packages/plugin-charts/src/index.tsx
@@ -67,6 +67,7 @@ ComponentRegistry.register(
       dataKey: 'value',
       xAxisKey: 'name',
       height: 400,
+      color: '#8884d8',
     },
   }
 );
diff --git a/packages/types/src/index.ts b/packages/types/src/index.ts
index b9faac95..ed2fc0dd 100644
--- a/packages/types/src/index.ts
+++ b/packages/types/src/index.ts
@@ -75,6 +75,7 @@ export type {
   SeparatorSchema,
   ContainerSchema,
   FlexSchema,
+  StackSchema,
   GridSchema,
   CardSchema,
   TabsSchema,
diff --git a/packages/types/src/layout.ts b/packages/types/src/layout.ts
index 64066ec1..40dc80bf 100644
--- a/packages/types/src/layout.ts
+++ b/packages/types/src/layout.ts
@@ -428,6 +428,7 @@ export type LayoutSchema =
   | SeparatorSchema
   | ContainerSchema
   | FlexSchema
+  | StackSchema
   | GridSchema
   | CardSchema
   | TabsSchema