In viewvc's colored diff views, there is no CSS class defined for
changed lines
One example:
http://gcc.gnu.org/viewcvs/trunk/gcc/config/avr/libgcc.S?r1=172384&r2=172383&pathrev=172384&diff_format=h
The "removed" lines have a red background and can be seen easily.
But the "changed" lines have just a slight variation in font face and
it's hard to find all changed lines.
The "changed" lines refer to a CSS class "vc_diff_change" which is
defined nowhere: http://gcc.gnu.org/viewvc-static/styles.css doesn't
define that class.
Moreover, the red lines use a fixed-size font whereas other source lines
use a variable-width font which make it hard to distinguish O/0 resp.
I/l/1/|.
IMO a fixed-width, same-face font for all source lines is preferable,
and the changed lines could be better seen if they had a distinct
background color like, say, yellow.
Johann
