How does sprite extrude edges work?

How exactly does sprite extrude edges work? Whether I set it to 0 or to Max it doesn’t seem to do anything different.

Does anyone know how to use this feature properly and what problem it is designed to solve?


The “Extrude Edges” option represents “How much empty area to leave around the sprite in the generated mesh.”

You can check in more depth how exactly works in the Unity’s C# reference files: UnityCsReference/Editor/Mono/ImportSettings/TextureImporterInspector.cs at master · Unity-Technologies/UnityCsReference · GitHub

Happy learning!