It supports:

1. "Go to definition" feature: when the developer hovers in a function name and then clicks the "Go to definition" shortcut and finally the mouse cursor will be moved to point to the function definition.
2. Send info about function signature when the cursor hovers into the function selector.
3. Send info about hovered address when the cursor hovers into the contract address.
4. API service to connect with Dune to fetch functions signature, and the contract name.