 
            | Working with PrizmDoc > Developer Guide > Customizing the Viewing Client > Customization Examples > Changing Annotation Default Values | 
You can customize the default behavior of an annotation by modifying the button markup located in viewerTemplate.html.
In this example the mouse tool will draw a green line and will not open the context menu:
| Example | 
                        Copy Code
                     | 
|---|---|
| <button data-pcc-mouse-tool="AccusoftLineAnnotation" data-pcc-default-fill-color="#ff0000" data-pcc-context-menu="false"></button> | |
These are the current data attributes that are being used to set defaults:
| Attribute | Value Type | Description | 
| data-pcc-default-fill-color | String | The default fill color for the annotation. This must be a hexadecimal string of 6 characters preceded by a #. | 
| data-pcc-context-menu | Boolean | Whether or not to show the context menu when the annotation is drawn. Default is true. |