Adjusting your theme is as easy as adjusting application preferences. Most popular software terminal applications, including GNOME, KDE, and Xfce, ship with the option to change their color theme. So, the chances are good that your software terminal window has plenty of options to theme what you see-however you define beauty. Beauty is in the eye of the beholder, and terminals have come a long way since the days of CRT serial consoles. If you spend most of your day staring into a terminal, it's only natural that you want it to look pleasing.