funnyplaying.com has recently released an IPS screen replacement kit for the Game Boy Color. This apparently uses the same screen as the GBA IPS kit, with a different ribbon cable for the GBC: https://funnyplaying.com/collections/gameboy/products/for-gbc-ips-high-light-backlight-lcd-kits
Installation requires you to cut plastic on the inside of the case, making it an irreversible mod. Luckily, replacement GBC housings are inexpensive and easy to get, so I recommend getting one of those as well: http://bit.ly/gbchousing
One cool bonus is the screen seems to be the same size as the original, meaning you can use the original screen protector, or use a standard (and highly recommended) glass screen protector. This is a cool bonus, as the previous LCD kits for the GBC has a smaller screen, meaning you either ended up with the LCD’s metal visible, or you had to buy a custom glass screen protector, that seemed to always be out of stock.
I hope to get one in soon and compare it to the original solution, as I previously did with the GBA screens!