This is just a small design suggestion. The colo(u)r of numbers in the JavaScript editor in the challenges is the same as the colour of comments. Personally, I find this a bit confusing, visually.
Or possibly I’m colourblind, idk.
I’m not sure, but I think that this is controlled by the monaco editor. I just played with it and looks like they are the same shade of green when you use the light FCC theme, but when you turn dark mode on they are different. They’re both green, but the number values are much lighter than the comments.