I have a couple of suggestions based on a few hours of play in R55, too minor to count as bugs/features:

The Frost Bolt spell looks too much like a lightning bolt. I think it would be better if it used the fire bolt shape but with a different palette.

There is no satiation display--I notice when I get hungry but not when I'm satiated or bloated (aside from reading the message after eating, but it would be nice to be able to look it up)

It would be nice to be able to choose the font face and size of the scrolling message area. I find the serif hard to read; I'd like to change it to san-serif bold personally, but that's a personal thing. I couldn't find an option for this in the NotEye menus.

Casting a spell over an animated water tile noticably slows the spell animation too.