# Global

## F2.Global

`F2.Global` is the global configuration in F2, it contains following attributes:\
We can get the default value of an attribute by `console.log(F2.Global)`.

| Name            | Type           | Description                                                                                                                                       |
| --------------- | -------------- | ------------------------------------------------------------------------------------------------------------------------------------------------- |
| `padding`       | Array / Number | the spacing between the chart plot area and the canvas border. See [here](https://antv.gitbook.io/f2/api/chart#padding). Default value is 'auto'. |
| `appendPadding` | Array / Number | The reserved spacing on the four sides of the chart canvas area. See [here](https://antv.gitbook.io/f2/api/chart#appendpadding).                  |
| `axis`          | Object         | The default configuration for different types of axes.                                                                                            |
| `colors`        | Array          | The default color series.                                                                                                                         |
| `defaultColor`  | String         | The default color.                                                                                                                                |
| `fontFamily`    | String         | The default font family.                                                                                                                          |
| `guide`         | Object         | The default configuration for different types of guides.                                                                                          |
| `legend`        | Object         | The default configuration for different type of legends.                                                                                          |
| `lineDash`      | Array          | The default setting for `lineDash`.                                                                                                               |
| `pixelRatio`    | Number         | The default pixel ratio.                                                                                                                          |
| `shape`         | Object         | The default style configuration for different shapes.                                                                                             |
| `sizes`         | Array          | The default size range for size mapping.                                                                                                          |
| `tooltip`       | Object         | The default tooltip configuration for tooltip.                                                                                                    |
| `version`       | String         | The current version of F2.                                                                                                                        |
| `widthRatio`    | Object         | ratio of width for different shapes.                                                                                                              |

**Methods**

### `Global.setTheme(config)`

Configure F2's charts style. For users to define their own style.

**Parameters**:

| Name     | Type   | Description         |
| -------- | ------ | ------------------- |
| `config` | Object | theme configuration |

Example: 

```javascript
F2.Global.setTheme({
  colors: [ '#F04864', '#D66BCA', '#8543E0', '#8E77ED', '#3436C7', '#737EE6', '#223273', '#7EA2E6' ],
  pixelRatio: 2,
  guide: {
    line: {
      stroke: '#F04864',
      lineWidth: 2
    }
  }
});
```


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://antv.gitbook.io/f2/api/global.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.