Add-ons
Solid
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Dark/Black theme (works with 115.*)
A simple black and white dark theme based on Luminous Matter.
Windows 11 Dark
The grey color from Windows 11 Dark (#202020)
It goes very well with BIB3 by Niivu (Windows 10/11 Theme).
Dark Gold
A dark black and gray theme with gold/orange accents. A port of my Dark Gold theme for Firefox, with some tweaks specifically for Thunderbird.
Nu-grey-theme
A simple grey theme for Thunderbird. A solid colour hex #ccc background which may help reduce eye-strain.
SpaceShaman Dark
Step into the dark side of the force and discover the secrets of the cosmos without the risk of eye damage!
Classic BB Colors
Calm and simple, bright theme in classic blue and beige colors.
Screenshots: https://imgur.com/AWjqqfe | https://imgur.com/75u8TvJ
MintGreen Dark Soft
This theme matches well with LinuxMint and Cinnamon Theme.
Use an add-on like Darko to darken the message body.
Originally written for Firefox.
Thanks to calvinchd at calch.themes.thunderbird.net for original Gruvbox Dark.
Tested up to v128.
Vioorange Warm
Warm, cozy, bright theme in violet and orange, ideal for winter or autumn.
Screenshots: https://imgur.com/NdKQA43 | https://imgur.com/uXtZpPw
Pistachio Ocean
Light and fresh, calming theme in pistachio and bright blue colors - not only for medics.
Screenshots: https://imgur.com/0hNFPjY | https://imgur.com/0Rma4Mn
To create your own collections, you must have a Mozilla Add-ons account.
