Thanks, would be great to have searchcode up to par with Github's search.
I would pay special attention to the yellow highlights. It's only confusing if the technique is overused.
I am modifying it now to be a little more like github's.
I had planned on removing the highlights too, its going to be modified to just affect the portion where the match occurred. Its mostly there as a hangover from when I was not actually highlighting the actual match and just the line.
Its something I am going to change based on feedback as clearly what I am doing is not what people are expecting. I will however make it an option, so you can chose exact match (current) or loose.