Create a new bookmark somewhere in your browser with the following URL:
javascript:(function(){ var last = ''; var color = 'transparent'; $('#list_table_body tr').each(function (index, el) { var actual = $(el).children(":first").text(); if (actual !== last) { color = (color === 'transparent') ? '#eee':'transparent'; } last=actual; $(el).css('background-color', color); }); })();