The status circle for a category appears to the right of the folder icon instead of the left. This makes categories appear to be subcategories of other files/categories when they aren't.
In the attached screenshot, "LEA and SIA Proxies" look like a subfolder of "Retry". The child articles of "LEA and SIA Proxies" look like siblings. I feel that if the "LEA and SIA Proxies" status circle appeared directly under the "Retry" status circle, it would more accurately reflect the (lack of a) parent-child relationship.