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Dark Night Arcturus X
Quite dark theme, based on shades of grey colors with blue and orange elements. Optimized for enlarged Thunderbird interface - to see best results, set Density: Relaxed and Font Size: 15px in Thunderbird Options.
Thank you.
Abstract Theme Carole Pepper
An abstract Firefox theme of the charactor Carole Pepper of Honkai Impact 3rd. Inspired by the color of the character's default skin, including the character's skin tone and clothing color. The copyright owner of the charactor Carole is Mihoyo.
Dark electric violet
Dark and violet theme for Thunderbird by Stonymontana
Valorant Red
A Thunderbird theme version with custom 'Valorant'-red CSS
Rose Pine Dawn
A theme based on the Rose Pine Dawn color scheme (https://rosepinetheme.com/)
Muted Sage Gruvbox Dark
Muted Sage Gruvbox dark theme for Thunderbird.
Forked from calvinchd's gruvbox dark theme.
Alpenglow
The legendary 'Firefox Alpenglow' theme now available for Thunderbird.
Solarized light Theme ternoc
Solarized theme created by ternoc, based on Ethan Schoonover palette.
Tokyo Night
A nice dark theme for Thunderbird based on Enkia's Tokyo Night theme for VIsual Studio Code.
Clean and Professional
Clean and polished theme for Thunderbird and Firefox.
Neopolian's purple and blue blur
A dark theme with a pleasent tab bar background image
PNBG (Pretty Nice Grey - Blue)
A thorough theme, deep blue and nice grey, reminds of older chrome and Firefox look, easy on the eyes. This is a beautiful, nice theme, also available for Firefox.
Game Red Highlighted
A thorough red/dark gaming theme, no distractions, strong red details and a red indicated current tab to never be confused and always remain focused.
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