RE: diff-mode

[Drew Adams]

> The other day I was preparing a talk with a collegue on revision
> control, and we've also show how to use basic diff and patch.
> Even if most of the work was done in emacs, we used vim to 
> show the diff file, since it's much more colorful.
> Anyway after I solved customizing some faces
...
> Now it's even too much contrast :D
> But then I thought, wouldn't it be possible to show the normal syntax
> highlighting of the given mode and use some background/font style to
> differentiate what's to add/remove?
> 
> I think even if it's a diff code would look more clear and 
> nice if it's in the "right" colors...

See also:
http://www.emacswiki.org/emacs/DiffEnhancements

http://www.emacswiki.org/emacs/diff%2b.el