How to exit normal mode with Escape

[himat]

I see that I can press jk to enter normal mode. But it seems like only pressing i can let me go into insert mode - normally that's fine in vim, but I feel like when using vimmode.spoon I actually want the opposite.

Or at least, I'd like to be able to press Escape to leave the vimmode.spoon normal mode and go back to the regular OS. Is there a config I can use for that?