This was kinda a personal thing but I felt like sharing it in case anyone feels the same way.
The new(est) set of icons is too washed out for my taste, so with a little bit of color correction I made a new sprite sheet which is much more saturated.
Also I changed some of the cops so they don't look so same-y.
https://userstyles.org/styles/141924/saturated-icons-better-cops (Requires Stylish Addon)