First of all - great game, i love paper-like genre, and this game is a good example, use this if this or that, but not if this is used, so half of my fun was from the gameplay, and not graphics, as it usually is in *those* games, and i also love supplementary mechanics such as turning into a goblin, so you have to use some tools, how you have to distract the eye staffs, or, at level 8, it really makes it harder to think by distracting you (i love those 4th wall breaking mechanics)
But i have also a few suggestions:
1 Make a targeted monster card part of the menu as title and colorblind assist (cuz having it in the item zone is kind of strange)
2 i know it would require some art redrawing, but make that every gem has unique shape, cuz right now even if you aren't colorblind, you still can use the toggle to your advantage, but if they all have different shapes, you would be able to just remove it. like blue would have a diamond shape (the same as default on books), red square, orange triangle, yellow would have hexagonal shape, green would look like a "💧", purple is uncut (as in skull staff RN) white completely round, and pink heart shaped
And also in the goblin level, the thief's pants unrip after goblinification (i have screenshots of what i mean, but can't post them RN)