I've been so sick of the eye burning light colored UI on WhatsApp desktop for so long and decided to come up with a dark mode myself. Here's a screenshot of the result.
It was very satisfying and thought this is worth sharing. Made a little installer script for both Windows and macOS and published it as an open-source project.
FYI, this is not a modded version of WhatsApp. It'll just modify the styling of your currently installed build of WhatsApp desktop. It's 100% safe and anybody's welcome to look through the source code and review.
Downloads and Instructions :
Please note that this script won't work with microsoft store or app store version of WhatsApp desktop