You can change the wallpaper and theme on your school Chromebook to make it more comfortable to do your work. To start, right click anywhere on the desktop and click Set wallpaper & style:

Choose between light mode, dark mode, or automatic switching based on the time of day using the buttons at the bottom. Some find dark mode more comfortable on the eyes, so try it out and see if you like it.

Then, click on the wallpaper to see options you can change it to. Note that some have different variants depending on if the system is in light or dark mode. Now you can enjoy your far less boring school Chromebook!