Make colors in diffviewer more subtle

Review Request #26 — Created May 23, 2007 and submitted — Latest diff uploaded

Information

Review Board SVN (deprecated)
trunk

Reviewers

One of the comments that Juan made on his first look at
reviewboard was that the colors in our diff viewer were
a bit too heavy.  This basically adds gradient backgrounds
to the tops of change sections that fade to a much lighter
color, making large blocks less fatiguing to read.