The form signature field is a bit small on forms when working on a mobile device. The container is large in comparison, especially when on a larger tablet.
It would be nice if the signature box filled this container so no matter what size screen you are on, it will fill the available space.
Currently we override zooming on pages and manually zoom the signature field to make it larger for customers to sign. If it simply filed the container it is in, this would not be necessary.