I preferred the dark graphics so I made some alternative icons in the same style as the ones before the update but based on the new vanilla factorio icons, meaning they are high resolution.
In case someone is interested in using them:
https://drive.google.com/file/d/1Uwl2kKiA2MKQZR9cTp3vBG-RGnAuPUgN/view?usp=sharing
The lights of the graphics in the folder original_hue have the same color as the vanilla ones.
However, I felt like this makes the productivity models look yellow and the efficiency modules pale/cream-green, so I modified the colors to look more orange and a bit darker for the productivity modules and darker and a bit more saturated for the efficiency modules (icons in the folder modified_hue).
To match, item.beacon_tint.primary and item.beacon_tint.secondary also has to be changed for the productivity and speed modules.
As I said, they are based on the vanilla factorio ones, but otherwise everyone can use them however they want.
Here is the modified version of this mod (v0.1.8) for those who don't want to replace the files manually:
https://drive.google.com/file/d/1J3tvR8gv9U7naCPNh8Zdovu05FRnMa73/view?usp=sharing
Thank you MaxelDel for making this mod.
edit: The title should have said "Alternative graphics", but I seems like I can't edit it after posting, so sorry about that.