Hi,

maybe this is already possible and i didn't find the info, but it would be nice to allow hiding unchanged lines from report to be able to see at a glance the changed elements instead of neededing to scroll over the whole source.

It can already be done in browser's inspector by adding
.diff li.unchanged {
display: none;
}

So could for instance add a checkbox "Show diff only" next to prev next close and eventually store its state in a cookie to exploit it inside result iframe.