If you're in your home folder, you can right-click any of the folders and just under "Properties" are some colors. If you click one of the colors, it will highlight the text underneath that folder.
I was wondering if there is a way to change the color of the folder itself.
I know there is a package called folder-color, which works on Ubuntu-based systems but doesn't seem to work on elementaryOS.
UPDATE: I just came across this blog post. The very first picture, under 0. The Desktop!, has different color folders. Anyone know how he did that? https://medium.com/@alex285/7-things-elementary-os-does-terribly-wrong-in-2018-b9035df08791
UPDATE #2: I heard back from the guy who wrote that blog post. He said it was from a "WIP/Branch when elementary was trying 'colored' folders. But it didnt land on final Juno release!" From the context, I think WIP means "work in progress" and is referring to a beta version. It would be nice if the developers made changing folder colors a permanent option. They did say this regarding the new manila folders: "We switched from the previous blue folders throughout the OS for folders to be more neutral, plus to open up the possibilities for more meaningful use of color in the future."(emphasis added) in the following article: https://medium.com/elementaryos/elementary-os-5-juno-is-here-471dfdedc7b3 I would definitely like to be able to change colors of the folders.