# BackgroundTypeFill

Source: https://core.telegram.org/bots/api#backgroundtypefill

[Documentation index](../llms.txt)

The background is automatically filled based on the selected colors.

| Field | Type | Description |
| --- | --- | --- |
| type | String | Type of the background, always “fill” |
| fill | [BackgroundFill](backgroundfill.md) | The background fill |
| dark\_theme\_dimming | Integer | Dimming of the background in dark themes, as a percentage; 0-100 |