This is the diagram I want ot insert

---
config:
  theme: neo
  look: handDrawn
  layout: elk
---
flowchart TD
    A("Project Idea") --> B("Initial Planning")
    B --> C("Detailed Design 
 & 
 Requirements")
    C --> D{"Decision: Continue or Stop?"}
    D -- Continue --> E("Development Phase")
    E --> F("Testing Phase")
    F --> G("Deployment")
    D -- Stop --> H("Feedback and Improvement")
    G --> H
    H --> B
     A:::green
     B:::orange
     C:::blue
     D:::yellow
     E:::pink
     F:::purple
     G:::green
     H:::orange
    classDef green fill:#B2DFDB,stroke:#00897B,stroke-width:2px
    classDef orange fill:#FFE0B2,stroke:#FB8C00,stroke-width:2px
    classDef blue fill:#BBDEFB,stroke:#1976D2,stroke-width:2px
    classDef yellow fill:#FFF9C4,stroke:#FBC02D,stroke-width:2px
    classDef pink fill:#F8BBD0,stroke:#C2185B,stroke-width:2px
    classDef purple fill:#E1BEE7,stroke:#8E24AA,stroke-width:2px