Graphic assets have been modified so hat they are of the size at which
they are displayed. This makes them safer for browsers not supporting
background-size property.
Bug: 49107
Change-Id: Ifdce9ff5034e2b11d3e1dd24ac649cb99a151312
Setting a fixed height was preventing some scripts to be properly displayed.
Scripts with higher line length got cropped.
Change-Id: I7efef3acd34b0b98ce8719f508980501d306fd9e
CSS adjustments to visually distinguish settings sections from the
settings panel. Sections in the left use a light gray background to
provide contrast with the specific settings of each category.
Change-Id: Ie56020d6b8886cb9296f9ac9defe6ad81a6cc184