My Taurus Tracker 992 came with an oragne sticker for a front site post.
The sticker of course immediately fell off after being holstered a few times.
I decided to paint the front site post orange. I used nail polish, mostly because of cost and ease of removal if I was not happy with the results.
I'd say the results are quite good, I even ended up doing the sites on my ruger LCP as well.