gazugafan

/*
UPDATE: Bad news... it looks like my system-wide Windows 10 dark theme was doing a whole lot more to Thunderbird than I realized. The native dark theme in Thunderbird 60 actually does very little--only darkening the tab-bar and toolbars. To get the full dark theme effect, you would ALSO need to install a customized Windows 10 dark theme. I use the BIB theme here...
https://www.deviantart.com/niivu/art/BIB-676860381
... after installing the BIB Windows theme (or maybe some other dark system-wide theme), you can use the userChrome.css and userContent.css files to fixup the few remaining bright spots.

Original description...
Fixes several bright spots left in the new native dark theme in Thunderbird 60... most noticeably the splitter bars and calendar.
Also increases the font size and spacing, adds a slight zebra striping to the message list, and brightens unread items.
Not sure if this can be wrapped up into a theme or extension anymore.

mudge

# This goes in config/locales/en.rb (*not* en.yml)
{
  :en => {
    :time => {
      :formats => {
        :full => lambda { |time, _| "%H:%M | %A, #{time.day.ordinalize} %B %Y" }
      }
    }
  }
}