Best 4 Thunderbird Theme Open Source Projects

Shades Of Gray Theme

[unmaintained] A flat dark GTK-theme with ergonomic contrasts

Monterail Fulldark

Monterail Full Dark, a Thunderbird theme inspired by the mockup of Monte...

Monterail Dark

Monterail Dark, a Thunderbird theme inspired by the mockup of Monterail

Thunderbird Theme Papirus

Papirus icons for Thunderbird