Hi this is a nice little extension (I tried requesting a similar feature in VSCode but sadly didn't get enough support)
Currently hovering on the extension's icon shows "Toggle Terminal" in a popup:

If you open multiple terminals in VS Code, there will be an icon and name for each one:

I have an idea for an extra feature: It could be more useful if this extension showed this preview in the hover popup (maybe even allow user to click one in the popup if that's possible/not too much)