---
title: Theme Style
lastModified: "2026-10-07T18:56:41+01:00"
lastAuthor: Kaylee
---
```svelte title="src/routes/+layout.svelte"
<svelte:head>
	<!-- generateThemeCSS escapes `<`, so its output is safe in a style element. -->
	{@html `<style id="c15t-theme">${data.themeCSS}</style>`}
</svelte:head>
```