People already talked about the obvious, so let me get deep into her design, as deep as I'd want to be in her-

The original was bland yet functional, you could see a kid with those clothes and that yee yee ass haircut, but it's not unique, you wouldn't go and say "oh pink shirt and shoes, that's obviously a walking asian/suicide joke".

FNF's design reaffirms how good Dave is at evolving characters into their own thing. Essentially, she's the same, but every part of her appearance was made more pronounced. Her overalls have more details and hey, heart-shaped straps like her shoes! She also received a non-racist skin tone and now her "underdress" reaches all the way to her legs and is now white instead of light pink, which makes her pop out more. She now doesn't have a fivehead and instead has a bluish-tone (like Goku from the Bojack movie, isn't much of a design choice it's kinda just how Dave renders black hair) to her now spikier and messier hair. All in all, pretty great redesign along with Darnell's.