Here is how you can change how the folder thumbnails in Windows 11 look. A neat third-party tool and a custom set of icons allow changing the default view and enlarge file previews.

Some apps come preinstalled with extra icons that you can use. Most don’t, so you’ll have to find custom icon files online, put them all in a folder, and then individually change the app icons.

Customize Folder Icons in File Explorer While the default folder icons in File Explorer look decent, you can make them stand out by choosing custom icons for individual folders.

Minecraft Fan-Made PC Folder Icons According to dalpipo, these icons are best used on Windows 11, and they even provided a short guide in the thread on how to install the custom folder icons.