pub const BLACK: &str = "30";
pub const RED: &str = "31";
pub const GREEN: &str = "32";
pub const YELLOW: &str = "33";
pub const BLUE: &str = "34";
pub const MAGENTA: &str = "35";
pub const CYAN: &str = "36";
pub const WHITE: &str = "37";
pub const GREY: &str = "90";