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n(d).dark.fresh

A dark fresh theme by neuro(drive).pro()

Rated 5 out of 5 stars (3)
169 users
Updated Feb. 26, 2024

Everforest Theme

Everforest color scheme theme for Thunderbird

Rated 5 out of 5 stars (1)
13 users
Updated Jan. 10, 2024

Polish blue 1.0

Motyw by QLIN

Not yet rated
2 users
Updated Dec. 18, 2023

Polski błękit

Motyw by QLIN

Not yet rated
4 users
Updated Dec. 18, 2023

Synthwave_Gradient

Synthwave Gradient for Thunderbird Email

Not yet rated
64 users
Updated Sept. 18, 2023

Gruvbox Dark Thunderbird

Gruvbox dark theme for Thunderbird. Originally written for Firefox. Using https://github.com/morhetz/gruvbox color palette.

Check out this theme for Firefox https://addons.mozilla.org/en-US/firefox/addon/gruvbox-dark-theme/

Rated 5 out of 5 stars (11)
1,199 users
Updated Aug. 29, 2023

Numix Blue

Numix background with some blue accents.

Rated 5 out of 5 stars (1)
16 users
Updated Aug. 1, 2023

SimpleFox-Like

Minimal.

Not yet rated
13 users
Updated June 30, 2023

SpaceShaman Dark

Step into the dark side of the force and discover the secrets of the cosmos without the risk of eye damage!

Not yet rated
34 users
Updated Feb. 14, 2023

Galizur Theme

A spellbound, vibrant dark thunderbird theme

Rated 4 out of 5 stars (1)
40 users
Updated Dec. 4, 2022

Nu-grey-theme

A simple grey theme for Thunderbird. A solid colour hex #ccc background which may help reduce eye-strain.

Rated 5 out of 5 stars (4)
850 users
Updated Nov. 21, 2022

Arc X Dark

A dark blue theme that compliments niivu's ARC X Windows 10 Theme from deviantart.

Rated 5 out of 5 stars (1)
113 users
Updated Oct. 10, 2022

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.

Rated 5 out of 5 stars (2)
334 users
Updated Sept. 22, 2022

Luminous Matter

A simple black and white dark theme.

Rated 5 out of 5 stars (1)
31 users
Updated Sept. 22, 2022

Windows 11 Dark

The grey color from Windows 11 Dark (#202020)

It goes very well with BIB3 by Niivu (Windows 10/11 Theme).

Rated 5 out of 5 stars (1)
276 users
Updated Sept. 2, 2022

Dark/Black theme

A simple black and white dark theme based on Luminous Matter.

Rated 5 out of 5 stars (3)
366 users
Updated July 13, 2022

Neat Dark Theme - Blue

A Blue Neat Dark Theme for Thunderbird

Rated 5 out of 5 stars (1)
319 users
Updated May 26, 2022

Neat Dark Theme - Pink

A Pink Neat Dark Theme for Thunderbird

Not yet rated
55 users
Updated May 26, 2022

Orangine

Grey and orange theme

Not yet rated
3 users
Updated May 11, 2022

Dark Imagine Theme

Simple black theme by Imagine.

Not yet rated
8 users
Updated Jan. 31, 2022