Thunderbird tabs without curves and gradients
Some Opera-inspired adjustments of a particular "square tab" theme to fit with Windows 10 better.
A tab style for Thunderbird based on the Numix GTK Theme (http://numixproject.org) and on Numix for Firefox. Changes tab toolbar and tab appearance.
For people who use the awesome Numix Dark theme for Linux. This userstyle fixes Thunderbird's horrible appearance if you use Numix Dark. If you want to know what parts of Thunderbird are changed: Screenshots speak louder than words, so check them out.
Display calendar a dark way for a use of a dark theme in thunderbird
A dark view of thnderbird conversation, for use with a dark theme On the screenshot, I also use accountColor
This style makes Thunderbird tabs look like those in the FlatStudio GTK+ theme (without the rounded corner, as when tabs-2.css is selected in gtk.css). This is a direct port of my Firefox FlatStudio Tabs style.
I recently started using Windows 8.1 and wasn't happy with how darker theme colors make it so you cant read the menu text and tab text on Thunderbird. I decided to make a script to change that. I made this for personal use in Thunderbird but it will probably work in Firefox.
A remix of Thunderbird Darkning by BastienHo.
Change the color and design from Add-ons-Manager