Version 0.12.7 introduced a largely hidden feedback form (accessible from the release notes page, and small note on the local network multiplayer page).

0.13.3 brings an improved about page making the feedback form is now more visible, so I figured I would also make it more apparent here.

The feedback is gathered via a Google Form, and has some optional fields that will be auto-populated if you access it from the game.

Provide feedback here.