I am asking this question having been looking for dark theme for Firefox. I know of no theme that fully darkens the browser especially website pages. I am now using FT DeepDark and askubuntu has a white page just as all other websites. It might make sense because these are browser themes.
So my question is there a way to have dark webpages also? And is there a quick way t switch between a light and dark theme? Preferably automatically based on day/night?
And lastly, the title says it. Is there aa system-wide (also affecting applications like vim and browsers) dark theme and the possibility to automate the switching? I also just found a similar one for Firefox. The plus for the Firefox one is you can edit the color and it has an automatic timer which you can control. This seems promising.
PS: I recently switched from Gnome to i3.
Update: I already have add-ons like Dark Theme one for Chrome but they are GUI-specific. They do not deal with the backgrounds of websites. The only one I use that deals with backgrounds is Eye Guard.