I got permission to post this; (For some reason search engines decided to catch up this post before the official github website did a few hours ago)
Awaited for months by some, this is basically the project that allows you to get a close-to authentic Old Chrome experience from Chrome 1 to 58, including bars
Despite only sounding some simple theme that could be made for anyone at r/FirefoxCSS, this also uses JS and you can also install Chrome Webstore themes with it (by getting the crx downloader)
This is how it looks like with Chrome 21 themed
