TamperMonkey scripts developed by Joe Cincotta.
All these scripts require installation of TamperMonkey
This is a purely cosmetic script that messes with the CSS of the new offensive changes to the GMail UI. Easy to hack and make it work for your own tastes.
Install the User Script using this link: https://github.com/CINJ/TAMPERMONKEY/raw/master/NewGmailFixer.user.js