Modern looking Tutanota theme, applicable with 'Stylus' extension. There's a light and a dark theme that addresses to the system's current theme. For dark theme also switch to dark in Tutanota settings. For light theme vice versa.
- Get Stylus.
- In Stylus create new Style for 'mail.tutanota.com/mail'.
- Paste content from 'tutanota-modern-theme.css'.
- Finito!