The problem is that a background color is defined for .diffins and .diffdel but not for .diffmod

This results in a mixing of colored and uncolored html diff tags.

I think it is logical to give .diffins and ins.diffmod the same color
(idem with .diffdel and del.diffmod)


The code to change is in app/views/static_style_sheet.rhtml

.diffdel, del.diffmod {
  background: pink;
}

.diffins, ins.diffmod  {
  background: lightgreen;
}