I just purchase a BB Regent fit navy blazer. It looks and fits great but the gold buttons are awful and I'd like to replace them. Just for some perspective, I'm a professor (and 31 years old), and generally wear chinos/tie/oxford shirt or grey flannels/shirt/tie. With exception of the Summer, I like wearing a jacket. This blazer would rarely be needed for "formal" occasions. I'm deciding between these two buttons. One is a smoke MOP and the other a beautiful brown. I'd leaning toward the brown. What are your thougts?