2D GUI Curved Dynamic Text - possible?

I've been asked to find a solution (if one exists) to enable a user to enter text and then have our software display it in the GUI layer (we also use DF GUI if that helps) along a curved 2D arc. It seems to be possible to do this onto a 3D game object but I'm not sure it will work in 2D. The Asset Store did not lead me to a clear answer. There was a nice image Google found for me of curved text in Unity along a doubly inflected bezier curve:

https://www.google.com/webhp?sourceid=chrome-instant&ion=1&espv=2&ie=UTF-8#nirf=unity+curved+label&q=unity3d+curved+label☆t=20

but that image did not lead to an explanation of how that image was generated. Any help gratefully accepted.