When you are working with a ton of documents on a computer, you need to categorize them with a couple of aspects to not get lost. So, you want to set double color for all subfolders and a single color for the main one like here:
![The main folder and sub-folders](https://blog.foldermarker.com/wp-content/uploads/2022/06/image_2022-06-07_141305643.png)
Such a method can be helpful when you have your categorizing system based on folders and subfolders, making two criteria folders (like “green-yellow folder”, where green means – work files, and yellow – reports). Or want to divide folders by type. In this article, I’ll show you how to achieve this with the help of a Folder Marker and a Two-color Set.
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