We recently bought a home which has tons of huge windows which let in loads of light. Unfortunately, the previous owners had areas rugs. There is a dark outline of each area rug on the floors. (In other words, the sun-exposed areas are lighter than where the rugs were.) I have rugs but they are different size and shape so the color difference does show in some areas. The floors are oak and more of a natural finish. It has more of a yellowish hue to it. I am generally partial to darker wood but given how much we lost on our last house I want to do as little in the way of permanent changes as possible. I just used the orange glo refinisher on one section of the floor and it looks good - but of course didn't help the color issue. Is there a tint or gel or polish that I could mix with the refinisher to polish the floor to sort of darken the color? If the color could be improved by a few shades, I would be happy. I am trying to avoid refinishing the entire house.

Thanks