ImageButtonStyle

An enum that specifies the style for `https://developers.google.com/apps-script/reference/card-service/image-button`.


`BORDERLESS` is the default; it renders a simple image button with no border.
`FILLED` buttons have a background color you can set with `https://developers.google.com/apps-script/reference/card-service/image-button`.

To call an enum, you call its parent class, name, and property. For example, `
CardService.ImageButtonStyle.BORDERLESS`.

### Properties

| Property | Type | Description |
|---|---|---|
| `BORDERLESS` | `Enum` | Image button with no border. Default. |
| `OUTLINED` | `Enum` | Image button with clear background. |
| `FILLED` | `Enum` | Image button with colored background. |
| `FILLED_TONAL` | `Enum` | Image button with an alternative middle ground between filled and outlined buttons. |