One more thing:
If you somehow manage to screw up your theme to the point where the whole pub won't load correctly, including the forms necessary to (re)set said theme (yes, you've guessed it: I am speaking from experience:), here's an easy way back:
curl -b midn="$(cat ~/.config/.midnight)"\ -F theme=""\ https://midnight.pub/theme/update
Of course you'll need a valid session token in "~/.config/.midnight", if you don't have that, just login via curl and store the cookie:
curl -c ~/.config/.midnight\ -F name=<your nick>\ -F "password=<your password>"\ https://midnight.pub/check-login
To use that cookie the way it was intended by m15o you'll have to strip it down so the file "~/.config/.midnight" only contains the token/base64 string or modify the curl command, to reset the theme:
curl -b ~/.config/.midnight"\ -F theme=""\ https://midnight.pub/theme/update
More information on this topic can be found here: