Willie Zutz

I took an initial pass at this since I really want it! https://github.com/boarder2/Yonce-Chrome-Theme @minamarkham Feel free to use it as a starting point for an official version if you'd like!...

I've published a [Firefox theme](https://addons.mozilla.org/en-US/firefox/addon/yonce-theme/) from the same repo mentioned previously. Let me know if you'd like to publish an official version and I can take it down if necessary.

An alternative implementation could be the concept of a "primary" panel where all new windows will be added. Perhaps also adding an option for that panel to not go away...

I've published this to the [Chrome Web Store](https://chrome.google.com/webstore/detail/yonce-theme/pnggdmlfaockdkahgebgbnpappjignjg) for Chrome and Edge users now as well.