Mail Delivery 4K (Grey)

Mail Delivery 4K (Grey) theme for Thunderbird 100+ and 4K monitors.

Mail Delivery 4K (2004)

Mail Delivery 4K (2004) theme for Thunderbird 100+ and 4K monitors.

Asus ROG Leather Small Badge

Asus ROG inspired theme with smaller badge to better suit some resolutions

irasutoya01

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.

summersmile

Summersmile adds a lively flair to Thunderbird with a sunny yellow background, playful smiley graphics, and a "sunshine and smiles" theme that refreshes your email experience.

Breeze (Plasma 5) Arch Linux

Breeze (Plasma 5) + logo of Arch Linux

New Dark Bird

A Thunderbird theme with the new Thunderbird Logo.

Blue-Fox_by_Valdi

Dark Space Thème 9MKR

Dark Space Thème 9MKR est un thème de couleur sombre avec une image de l'espace.

Cat Collage

My cat Beeper can now delightfully viewed on Thunderbird.

Mail Delivery 4K (Red)

Mail Delivery 4K (Red) theme for Thunderbird 100+ and 4K monitors.

Mail Delivery 4K (2009)

Mail Delivery 4K (2009) theme for Thunderbird 100+ and 4K monitors.