Android Add-ons

Parasol Totoro per potatoes

Totoro from Studio Ghibli

Seagulls Watching per Tracee

Reece's Mixed Dark per Reece

Dark theme with blue accents.

Breeze Solarized Light per rplasson

Simple theme based on Kde Breeze Light theme, with solarized colors.

n(d).white.fresh per Carlos Alberto Rojas De La Torre

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

Nu-grey-theme per cybrkyd

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

MMB TB Light-Gray-Green per hbckrmzila25

Light-gray table-view with green buttons and blue menues.
Rounded buttons and toolbars.
Thunderbird image in upper right corner.
Rel. 2.179: Calendar + Spell-check dialog + Task actions toolbar adjusted.
Rel. 2.197: - for rel. 152.*.

Cookie Monster per satasuke

i love Cookie Monster

Ice Age per Gambat

House Stark - Game of Thrones per ladynany

Estandarte del lobo huargo, de la Casa Stark en la saga y serie de HBO Game of thrones.

Hatsune Miku - Yuki II - Animated per BXPCFox

Hatsune Miku - Yuki II - Animated - Music - Vocaloid - Anime

One Piece - Luffy and Sunny per DamianWayne

One Piece by Eiichiiro Oda
Image by Feriowind @ Pixiv (http://www.pixiv.net/member.php?id=725334)

Little Mermaid Ariel per Neviathien

The Little Mermaid
Disney

The Penguins of Madagascar per albyx87

The Penguins of Madagascar

Mac OS X El Capitan per Rich Garbutt

A Mac OS X El Capitan colour scheme for firefox