# buildThemeCss

**Kind:** Function

**Source:** [`atloria-monorepo/libs/pme-core/src/tools/theme.ts`](https://github.com/sherkety/atloria/blob/main/atloria-monorepo/libs/pme-core/src/tools/theme.ts#L138)

Build a <style> block with :root CSS custom properties.

## Signature

```ts
function buildThemeCss(theme: ResolvedTheme): string
```

## Parameters

| Name | Type |
|---|---|
| `theme` | `ResolvedTheme` |

**Returns:** `string`