You can switch the color theme used by clicking cmd k then cmd t, or by invoking the Preferences: Color Theme command, or by going in the Settings -> Theme menu.

This will show you the list of themes installed:

you can click one, or move with the keyboard, and VS Code will show you a preview. Click enter to apply the theme:

Themes are extensions. You can install new themes by going to the extensions panel.

The best way to find themes is to browse the marketplace website.

Lessons this unit:

0:	Introduction
1:	The interface
2:	Opening folders
3:	Editing
4:	Search
5:	Source control
6:	Extensions
7:	▶︎ Themes
8:	Recommended extensions
9:	The command palette
10:	Shortcuts
11:	Customization
12:	Terminal