[O] visualization of org-todo-list

[Pdj]

Dear All,

in Org-Agenda(t) aka org-todo-list,

1) is it possible to get rid of the top lines
"Global list of TODO items of type: ALL
Available with ‘N r’: (0)[ALL] (1)TODO (2)WAIT ..." ?

2a) I would like to either fontify different categories with different 
faces, or change the background of the heading accorging to the 
category. Is this something doable?

2b) As an alternative to 2a, it would be great to fontify the heading 
according to the TODO tag. Is this any easier?

Thank you!