| Attributes |
| Name | Required | Request-time | Type | Description |
| additionalProps | false | true | java.lang.String | No Description |
| block | false | true | java.lang.String | No Description |
| borderless | false | true | java.lang.String | No Description |
| buttonLabel | false | true | java.lang.String | Deprecated as of 7.3.0, replaced by the attribute label. |
| buttonStyle | false | true | java.lang.String | Deprecated as of 7.3.0, replaced by the attribute displayType. |
| buttonType | false | true | java.lang.String | Deprecated as of 7.3.0, with no direct replacement. |
| componentId | false | true | java.lang.String | Deprecated as of 7.3.0, with no direct replacement. |
| contributorKey | false | true | java.lang.String | Deprecated as of 7.3.0, with no direct replacement. |
| cssClass | false | true | java.lang.String | No Description |
| data | false | true | java.lang.String | Deprecated as of 7.3.0, with no direct replacement. |
| defaultEventHandler | false | true | java.lang.String | Deprecated as of 7.3.0, with no direct replacement. |
| displayType | false | true | java.lang.String | No Description |
| dropdownItems | true | true | java.lang.String | No Description |
| elementClasses | false | true | java.lang.String | Deprecated as of 7.3.0, replaced by the attribute cssClass. |
| expanded | false | true | java.lang.String | Deprecated as of 7.3.0, with no direct replacement. |
| icon | false | true | java.lang.String | No Description |
| id | false | true | java.lang.String | No Description |
| itemsIconAlignment | false | true | java.lang.String | Deprecated as of 7.3.0, with no direct replacement. |
| label | false | true | java.lang.String | No Description |
| monospaced | false | true | java.lang.String | No Description |
| propsTransformer | false | true | java.lang.String | No Description |
| propsTransformerServletContext | false | true | java.lang.String | No Description |
| searchable | false | true | java.lang.String | Deprecated as of 7.3.0, with no direct replacement. |
| showToggleIcon | false | true | java.lang.String | Deprecated as of 7.3.0, with no direct replacement. |
| small | false | true | java.lang.String | No Description |
| spritemap | false | true | java.lang.String | Deprecated as of 7.3.0, with no direct replacement. |
| style | false | true | java.lang.String | Deprecated as of 7.3.0, replaced by the attribute displayType. |
| triggerCssClasses | false | true | java.lang.String | Deprecated as of 7.3.0, replaced by the attribute cssClass. |
| triggerTitle | false | true | java.lang.String | Deprecated as of 7.3.0, with no direct replacement. |
| type | false | true | java.lang.String | Deprecated as of 7.3.0, with no direct replacement. |