Found something broken, unfair or confusing? The report panel sends it straight to the developer with your floor and build attached.
MENU > REPORT A BUG. Pick what kind of report it is (1): BUG, BALANCE, UI, IDEA or OTHER.
Give it a one-line title (1) and say what happened and what you expected (2) - which floor, which screen, what you clicked - then SEND REPORT (3). 'Bug report sent' confirms it has gone through.
Screenshots are taken from the live game by tools/tutorial_shots.py (dfmc-client) and regenerated after interface changes. The rules behind each screen: feedback-pipeline.