Update _Sidebar

_Sidebar.md

@@ -1,13 +1,39 @@
-# 🧠 **Image Processing Graph Menu**
+#  **Image Processing Graph Menu**
 
-[🚀 Quick Start Guide](quick-start.md)
+[Quick Start Guide](quick-start.md)
 
 ---
 
-## 🌐 Nodes
+## Nodes
 
-### 🖼️ Image Nodes
-- [🧩 BaseImageNode](Home.md)
+### **Image Nodes**
+#### **Core Image Nodes**
+- [BaseImageNode](Nodes/BaseImageNode)
   
-### 🔤 String Nodes
-- [String Append](Nodes/String/Append)
+#### **Image Processing**
+- [Desaturate](Nodes/Image/Desaturate)
+- [Get Dimensions](Nodes/Image/GetDimensions)
+- [Invert](Nodes/Image/Invert)
+- [Invert Channel](Nodes/Image/InvertChannel)
+- [RGBA Combine](Nodes/Image/RGBACombine)
+- [RGBASplit](Nodes/Image/RGBASplit)
+- [Single Channel Color](Nodes/Image/SingleChannelColor)
+
+#### **Image Input/Output**
+- [Texture2D Import](Nodes/Image/Texture2DImport)
+- [Texture2D Output](Nodes/Image/Texture2DOutput)
+- [View Image Node](Nodes/Image/ViewImageNode)
+- [From Path Node](Nodes/Image/FromPathNode)
+
+#### **Variable Nodes**
+- [Variable Node](Nodes/Image/VariableNode)
+
+### **String Nodes**
+- [Split](Nodes/String/Split)
+- [Append](Nodes/String/Append)
+- [Replace](Nodes/String/Replace)
+
+### **Utility Nodes**
+- [Generic Connection](Nodes/Utils/GenericConnection)
+
+---