ProtonMail theme creator



  • Jul. 7th, 2017: Fix header color and label issues for v3.9
  • Mar. 31th, 2017: Fix some border issue for v3.8.3
  • Mar. 25th, 2017: Fix compose button color and placement for v3.8
  • Feb. 24th, 2017: Fix colors after ProtonMail update
  • Feb. 14th, 2017: Customize the text color
  • Feb. 14th, 2017: Dark Proton


ProtonMail theme creator gives an easy way to customize your ProtonMail inbox with a clear theme with customizable colors.

To use your custom theme in ProtonMail, copy the generated CSS, open your ProtonMail settings, then the Appearance section, and paste the CSS into the Custom theme field.

ProtonMail theme creator is not at all related to ProtonMail company. It's originally based on Austin Delamar's work.

Made with ♥️ by Sébastien Castiel, published under GPLv3 licence. Fork it on GitLab!