# Dark mode

Some email clients change an email's colours when the reader uses dark mode, and the preview shows you how your email looks in both. For a layer whose colours must stay fixed, or should change in a specific way, set its dark colours yourself.

## See it

In the preview window, switch to **Dark**. The preview applies your dark-mode overrides, so what you see is what a dark-mode reader gets from them.

## Set a layer's dark colours

Select the layer and, in the Customize tab's Dark mode card, turn on **Override colors in dark mode**. Set the **Fill** and, where the layer has one, the **Stroke**. For a text layer, the fill is the text colour.

Photos and other raster images have no colours to override; the card does not appear for them.

## Where it applies

Overrides apply in clients that honour dark-mode styles. The tested clients are listed in [Designing your email in Figma](/designing-your-email-in-figma/#where-the-output-is-tested); use **Send test** to see the email in yours.