> ## Documentation Index
> Fetch the complete documentation index at: https://openrouter.ai/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# ImageGenerationRequestBackground

Background treatment. `transparent` requires an output\_format that supports alpha (png or webp).

## Example Usage

```go theme={null}
import (
	"github.com/OpenRouterTeam/go-sdk/models/components"
)

value := components.ImageGenerationRequestBackgroundAuto

// Open enum: custom values can be created with a direct type cast
custom := components.ImageGenerationRequestBackground("custom_value")
```

## Values

| Name                                          | Value       |
| --------------------------------------------- | ----------- |
| `ImageGenerationRequestBackgroundAuto`        | auto        |
| `ImageGenerationRequestBackgroundTransparent` | transparent |
| `ImageGenerationRequestBackgroundOpaque`      | opaque      |