the colour green as used by the terminal library
| std::BLACK | the colour black as used by the terminal library |
| std::WHITE | the colour white as used by the terminal library |
| std::RED | the colour red as used by the terminal library |
| std::BLUE | the colour blue as used by the terminal library |
| std::CYAN | the colour cyan as used by the terminal library |
| std::MAGENTA | the colour magenta as used by the terminal library |
| std::YELLOW | the colour yellow as used by the terminal library |
| std::GREY | the colour grey as used by the terminal library |