# ui.theme

> Talos next · Since next

Switch the UI to a theme the project's stylesheets declare, for a screenshot matrix.

Unknown names are refused, listing the real ones (ui.schema's themes).

| | |
|---|---|
| Title | Force a theme |
| Mode | `editor` |
| Token cost | about 94 tokens (listed only when its toolset is enabled) |
| Toolset | `ui` |

## Arguments

| Argument | Type | Required | Default | Allowed values | Description |
|---|---|---|---|---|---|
| `agent` | `string` | no |  |  | The name of the agent making the call, when several agents share one connection: each named agent is its own actor and plays its own game. Leave it out when there is one agent. |
| `theme` | `string` | yes |  |  |  |

## Example

An MCP `tools/call` with the required arguments (placeholders in angle brackets).

```json
{
  "name": "ui.theme",
  "arguments": {
    "theme": "<theme>"
  }
}
```