Colour accessibility isn't exactly a common consideration for a prototype, but for the official release, I could certainly add an extra option for accessibility (for the room types, but also for one particular puzzle and maybe for the character art?).
The first library book is clearly the way the player is intended to know their end goal (library is a very common room, but its 1-gold cost can be a bit daunting). Otherwise, there is another book in the basement staircase with the same info, and the book in the upper staircase clearly invite you to look for the basement staircase. So I'm not sure how much more I should telegraph that point.
I have 3 extra outfits planned (all are implemented, but they are waiting for their artworks), like 10 extra rooms planned (2 of them are already finished). I plan to also add a few illustrations, and I could maybe add some extra late game puzzles, but otherwise the game is mostly done.
Thank you for the extended stream. I will certainly come back to you at some point with an updated version. 🧚