Usually the name of the creator group, repository, or specific project series. It signifies a collection of assets that are often "exclusive" or tailored for a niche community.
To understand what makes this specific pack unique, it helps to decode the identifiers in the keyword:
Overlays for buildings, signage, and environmental objects reflecting urban or traditional Asian landscapes.
While the exact contents can vary depending on the platform (such as Steam Workshop, specialized modding forums, or 3D asset stores), these "Asian Edition" packs generally include:
Moving the downloaded files into a "Mods" or "Assets" folder.