Recently Updated Extensions
An adaptation of the Nord Theme for Thunderbird.
A warm theme perfect for fall with wheat and complementary orange-yellow-brown colour scheme.
One Dark theme for Thunderbird.
Nina Theme for Thunderbird.
A dark theme with a pleasent tab bar background image
Light theme with some gradients.
Phuong Nam Cons
Theme was made for everybody to have something different.
A dark, forest theme.
Gruvbox dark theme for Thunderbird. Originally written for Firefox. Based on https://github.com/morhetz/gruvbox
Check out this theme for Firefox https://addons.mozilla.org/en-US/firefox/addon/gruvbox-dark-theme/
The legendary 'Firefox Alpenglow' theme now available for Thunderbird.
A simple black and white dark theme.
Inofficial Nord theme for Thunderbird
Thunderbird 78 以降用に使えるテーマを練習用に作ってみました。
Very simple theme, which uses only public domain illustrations.
A dark Firefox theme for your web browser. It's simple and coherent.
I made it with Firefox color and just added stuff to the manifest to make it valid.
Dark Night Arcturus X theme for Thunderbird by Nyquisteroux.
This is a very dark theme, based on grey colors with orange and blue elements.
Becouse using of experimental functions, restart Thunderbird after apply the theme to see all effects.
A Thunderbird theme inspired by the Arc theme.
A purple theme for Thunderbird
If You like this theme, please try "Dark Night Arcturus X" theme, which is based on "Dark Night Arcturus" theme, but has more elaborate details and is just nicer, becouse I'm going to end the support for "Dark Night Arcturus" in the near future.