"Background Image" Field in Test and Quizzes Settings Screen Does Not Have Upload Button

Steps to reproduce:

1) Log in to Sakai community nightly and add Tests and Quizzes tool to a course site
2) Create a Quiz
3) Go into the Settings area for that Quiz and scroll down to the Graphics section
4) There is a field (with a radio button) called Background Image and a box to type free text - but not button to upload an image (or select a stored url)

Is there a need for this functionality? If not, perhaps the Background Image option could be removed altogether to prevent confusion.