# \&greenscreen

Sender-Side Option! ([`&push`](/advanced-settings/setup-parameters/push.md))

## Details

`&greenscreen` is a shortcut for [`&effects=4`](/advanced-settings/video-parameters/effects.md). It enables a virtual greenscreen on the publisher side, removing the background and replacing it with solid green (#00FF00). This is useful when you want to do chroma-key compositing in OBS or another tool.

Please enable WebAssembly-SIMD support under `chrome://flags/` for significantly reduced CPU load when using this feature.

## Related

{% content-ref url="/pages/-MZNW\_b8VrHaY-eDBYyk" %}
[\&effects](/advanced-settings/video-parameters/effects.md)
{% endcontent-ref %}


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