Open the terminal with a dark blue background and yellow foreground (font color)

A terminal emulator for the X Window System.
More information: <https://manned.org/xterm>.
Trick copyright: tl;dr; <https://github.com/tldr-pages/tldr>

xterm -bg {{darkblue}} -fg {{yellow}}

click the source code to copy install xterm on any operating system with command-not-found.com