[2/2] Settings: make UI widgets look like proper kit-kat widgets

This commit gets the remaining #33b5e5 in UI widgets out of the way, because let's face it, #33b5e5 is so 2013...^^

All credit for the drawables goes to XDA member enricocid (http://forum.xda-developers.com/member.php?u=5266287)

Change-Id: I3ba6847bcdd850aae2d6d05ddee2befd21981fce