I use the Solarized colorscheme in my terminal, which means that bold colors end up looking like different shades of gray. I'd like to be able to tell Cargo to use non-bold colors, or maybe be able to specify the whole palette in a config somewhere. What would be the best way to do that? I'm new to Rust, but I'm happy to try to write a PR if someone could suggest the way they'd like this to work.