Config class
Config is a fully map-based Storage implementation, it uses a LinkedHashMap as storage medium, while checks for supported value types using Backend.supports. Thus, every value stored in this class is directly stored in the wrapped LinkedHashMap, and when configuration need to be saved to file, it just sends an unmodifiable copy of this map to the backend (it must be a copy and unmodifiable to avoid concurrency issues).
Also, Config is not Thread-safe by default, this means that to concurrently write values, you need to implement a locking logic to allow only one modification at a time. We plan to provide a concurrent capable implementation in the future.