How to look for a material in Assets folder and sub-folders?

So there isn't a Unity class to do that? What about using AssetDatabase.Contains(Object)?

I haven't used the AssetDatabase class myself, as I tend to keep my assets organized into folders and sub-folders and so find using the IO class a far better solution.

Looking at the script reference, the Contains() method that you mentioned only returns whether the passed object is an asset (exists in project) or not (exists only in scene, e.g. instantiated at run-time).

For what you are looking for (searching for assets by name), I would again use the IO class to search recursively through all the folders in the project (using depth-first approach).

Got it, thx for the help!