Used in vanilla doors:

The Between - RIGHT




Used in a pseudo-connection:

The Sturdy - COLORS




Unsolved panels in letter rooms:

Daedalus (F2 Room) - DEADLY
Daedalus (F2 Room) - DIMS
Daedalus (F2 Room) - GRAVE
Daedalus (F2 Room) - LETHAL
Daedalus (O2 Room) - ACCEPT
Daedalus (O2 Room) - FOLLOW
Daedalus (O2 Room) - PLEDGE
Daedalus (O2 Room) - WARNING
Daedalus (U2 Room) - EFFECTIVE
Daedalus (U2 Room) - HELPFUL
Daedalus (U2 Room) - INFERNAL
Daedalus (U2 Room) - PRACTICAL
Daedalus (U2 Room) - PRODUCTIVE
Daedalus (U2 Room) - WONDERLAND
The Digital - EYE
The Digital - HIGH