For Linux user, when you open your terminal you will greet with the default theme. A white font color on dark/black background. But, did you know you actually can change theme color and font as you like, just in case if you get bored :). Here’s how to do it on Ubuntu 16.04 LTS:
Terminal Theme Font:
Open your terminal and right click choose Profiles —> Profile Preferences. On general tab you can rename the profile first. You also can change the shape of the cursor and text appearance. Check the custom font box if you want to make a change for font style. As you can see I have Tlwg Mono Bold with size 12.