semi-related to this:
i've been using my personal stylesheet for vdiplomacy.net to my personal taste and usability. it likely is not perfect at all, but it's tested by myself for some years now and nothing is significantly broken.
I've just quick and dirty published a public version of it on userstyles.org in case someone wants to try it:
https://userstyles.org/styles/151118/vdiplomacy-quick-improvements
You'll need a browser plugin like stylish or (much more recommended now) stylus ( https://addons.mozilla.org/en-US/firefox/addon/styl-us/ for firefox, https://chrome.google.com/webstore/detail/stylus/clngdbkpkpeebahjckkjfobafhncgmne for chrome) to install the style, and you need to visit vdiplomacy on the .net domain, not on the .com to work.
Also, you have to download and install the Open Sans Font ( https://www.fontsquirrel.com/fonts/open-sans ) to make if fully work (it still works with Arial if not installed).
generally, it ...
- creates more room on big screens for chat and map areas, going almost full screen width with some elements
- improves typography by changing to a more readable font (Open Sans)
- de-clutters the interface by removing some unnecessary lines, borders, linebreaks, background images, ...
- does not change too much to feel "wrong" - it's still brownish vdiplomacy, just improved in some aspects
- does not tamper with anything than CSS only, so no javascript or html is changed ... this limits some things to be changed, but it guarantees that nothing can break, it just does look different, it never changes any behaviours.