We are pleased to announce "dark(ish) mode" on the DVSPh website.
It can be activated by the day / night toggle on the right of the main menu on the top of the page. 
Or try it now
You will notice it's not 100% dark, more a DVSPh dark blue, but we think you'll still like it.
It is still in beta so be prepared for the odd quirk and surprise.
We have noticed a local caching issue where if you have a cached "light" version of the page on your local machine, that may be served on the dark version. We are looking in to a fix for this but think if you stick with one colour mode it should fix itself.
Colour switching seems to be browser, operating system and cache setting dependant.