Thanks for this!! Is there a way I can put custom sprite icons for the 90+ quality? How would one do that?

Do you mean for all the additional qualities, or just 90-99? Neither is possible out of the box but if you want to unzip and modify the mod slightly it isn't too hard.

yeah i wanted to put custom names and icons for all of them. I'm looking through the files but this stuff is like another language to me lol

So once you've unzipped the mod, you'll need to add all your graphics for the different levels to the /graphics folder. The three named qualities have their own images which you can replace with files of the same name, and then all the levels after should be called "quality-x8.png" through to "quality-x99.png" (right now I just made them use x8.png so I don't have to generate a bunch of images, so that's the only other one in there). These should all be 64x64px images and you'll need one for every level.

Then in data-updates.lua, go to line 100 and change it from:
icon = "unlimited-quality/graphics/quality-x8.png",-- .. name .. ".png",
to:
icon = "unlimited-quality/graphics/quality-" .. name .. ".png",

For the names, you should be able to go to the /locale/en/config.cfg and change them there (you'll see them all there, just change the right side after the equals sign to the name you want). However, there mayyy be a bug that won't actually show that in game. If they're still just called x<number> let me know and I'll see if I can fix it.

Make sure you remove the other (zipped original) copy of the mod as well just so it doesn't get confused.