Arc Inspired theme for Thunderbird

A theme for Thunderbird 78+, inspired by the excellent Arc Theme by horst3180.

Mail

Calendar

Installation

Mozilla Add-ons (recommended)

For the easiest way to install and keep updated, install the add-on from within Thunderbird itself using the official Mozilla Add-on store https://addons.thunderbird.net/en-US/thunderbird/addon/arc-inspired-2/ .

Manual

1. Download the add-on file.
2. Install as per the official instructions.

Credits

This theme contains some elements or inspiration from the following:

• Arc Firefox Theme by horst3180.
• Arc Theme by horst3180.
• Arc Darker Theme for Firefox by Afnan Khan.
• Arc Thunderbird Integration by JD342

Dev Notes

zip -r *.xpi manifest.json

Theme guidelines for Thunderbird 78+

• https://developer.thunderbird.net/add-ons/web-extension-themes
• https://webextension-api.thunderbird.net/en/latest/theme.html#theme-themetype