completed by: Aneesh Dogra
mentors: Walter Bender
Several more things to clean up:
(1) the quiz toolbar should be open by default
(2) the list of choices should increase more gradually: maybe something like: 333344445555....up to a max of ten.
(3) hitting next without trying to solve should not change the level of difficulty
(4) Somthing funny about the background screen: two-toned. Should be solid and light gray so the labels show up.