However, the designs on these doors are almost alike in such a way that they can all be described as "simple and elegant." And although these new simplistic designs would probably look good on modern fireplace designs, these may be incompatible with the rustic brick fireplaces. A masonry fireplace door would probably look better with a frame made to look like antique brass.
However, it is not a big problem because you can always buy special cleaners for fireplace screens and glass doors. More often the construction of furnaces have special channels that send air flow along the inner surface of the door, and don't allow the soot particles settle on the glass. If your fireplace has no doors at all, you can use a variety of nets and shutters that can be installed directly in front of the firebox. They help to manage the air flow and thus regulate the heat level.