In this visualization, we represent the parking domain using geometric shapes and colors to convey the status and relationships of cars and curbs. Here's how each element is defined:

- **Curbs**: Each curb is represented as a medium-sized rectangle. The curbs are aligned horizontally in a grid, with each curb labeled with its identifier (e.g., "curb_0"). The position of the curb (e.g., leftmost, to the right of another curb) indicates its relative location in the parking grid.

- **Cars**: Each car is depicted as a small circle within or behind a curb rectangle. The position of the circle (inside or behind another circle) indicates whether a car is parked or double parked.

- **Colors**: We use colors to indicate the status of cars:
  - **Green**: Indicates a "clear" status, meaning the car is free to move (either a single-parked car or the second car in a double-parked setup).
  - **Red**: Indicates a "blocked" status, meaning the car is not free to move (the first car in a double-parked setup).

- **Text Labels and Status**: Each shape (curb or car) includes a text label with its identifier and status. The status is expressed in a concise phrase (e.g., "Clear" or "Blocked").

- **Legend**: A legend is included to map colors to statuses. The legend is placed outside the main diagram area to ensure it does not overlap with any objects.

- **Sizes**: The relative sizes of shapes (curbs as medium rectangles, cars as small circles) help distinguish between different types of objects in the diagram.

- **Locations**: The horizontal arrangement of curbs and vertical stacking of cars represent their physical arrangement in the parking scenario. The relative position of cars (parked or double parked) is depicted by their position within or behind a curb rectangle.

These visual elements collectively provide a clear and intuitive representation of the parking domain, allowing viewers to quickly understand the configuration and status of cars and curbs.