Change in Tooth Color: A tooth suddenly becoming discolored might have suffered internal damage or a crack.

Source: https://www.aknewsfeed.com/what-to-do-about-a-cracked-tooth/

Finally, she zoomed in on her twelve-year-old bedroom furniture, which was originally white but is now discolored, despite frequent cleanings.

Source: https://www.chipchick.com/2023/03/one-mom-is-calling-out-the-unrealistic-standards-social-media-has-set-surrounding-the-idea-of-a-pristine-home.html

It was Daniel Salazar (Rubèn Blades) and his army who saved Madison and Victor from Troy, but not before he revealed a scar and a discolored eye.

Source: https://comicbook.com/tv-shows/news/fear-the-walking-dead-troy-otto-return-explained-showrunners-interview-807/