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# strokeShader

A custom shader used to determine the color of the stroked portion of the shape node.

```
var strokeShader: SKShader? { get set }
```

## Discussion

The default value is `nil`. If a `strokeShader` is specified, when the shape node is drawn, the shader is used to determine the output colors for any part of the shape node that’s stroked. SpriteKit implements many stroke features using a default shader, such as:

- <doc://com.apple.documentation/documentation/QuartzCore/CAShapeLayer/lineCap>
- [`glowWidth`](/documentation/SpriteKit/SKShapeNode/glowWidth)
- [`strokeColor`](/documentation/SpriteKit/SKShapeNode/strokeColor)

If you supply a custom value for `strokeShader`, your custom shader overrides the default shader which neutralizes the default features. It is the responsibility of your custom `strokeShader` to implement any of the features your shape requires.

---

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