Just a quick tip for those of you who are on a browser or OS that doesn't make it easy to see highlighted text. e.g. Chrome on OSX
Paste this in your console. It makes every text black.
d=document.getElementsByTagName('font');for(i=0;i<d.length;i++)d[i].color='#000';
Or make it a bookmark...
javascript:(function(){d=document.getElementsByTagName('font');for(i=0;i<d.length;i++)d[i].color='#000';})();