Thunderbird for Android version 16.0b1, based on K-9 Mail. Changes include:
- Add avatar to message list content
- Add avatar to message list content
- Add folder expansion in navigation drawer
- Added menu option/default to switch between plaintext and HTML
- Removed old account general settings
- Removed side rail drawer
- Improved edge-to-edge UI support
- Minor UI improvements to drawer
- Improved rendering of complex HTML and CSS