Enjoyed the game. Two requests if it is not too much and one bug.
The bug is that after selecting some spells, like 2 or 3, later on even if we have the points for other spells, they are very dark, and I think the select button is greyed out but I can still click on it. So it is only visual.
The two requests are, can you by any chance allow for a lighter background? If this would be too much effort for you to change all textures, can you allow us to change the screen tint? I must be the only dungeon crawler player that uses light backgrounds, the dark ones really tire my eyes (I wish dcss webtiles allowed this as well...)
Last request, maybe easier to do, can you also build a mac version? Maybe its not too important since I see that the browser actually kinda seemed to save my progress (I don't know how). At least when I refreshed it still had progress.