# 2D Trail

Colour-gradient trails behind moving objects.

```{raw} html
<a class="example-run-button" href="../demos/features_2d_trail.html">▶ Run in browser</a>

```

**Tags:** `2d`

Demonstrates:
  - Trail2D as a child of a moving Node2D
  - Configurable length, width, colour gradient, and lifetime
  - Multiple trails with different visual settings
  - Toggle emission on/off with Space

Run: uv run python examples/features/2d/trail.py

Controls:
    Space   - Toggle trails on/off
    Escape  - Quit

## Source

```{literalinclude} ../../examples/features/2d/trail.py
:language: python
:linenos:
```