Redmine Themes: Customize Your Interface

A well-chosen theme improves usability, reduces friction for new users, and gives your Redmine instance a professional look. This guide covers what to look for, how to install themes, and our recommended options.

1. Why Use a Custom Redmine Theme

Redmine's default interface is functional but dated. A modern theme can:

  • Improve readability with better typography and spacing.
  • Reduce onboarding time for new team members unfamiliar with Redmine.
  • Align the interface with your organization's branding.
  • Add usability features like dark mode, responsive layouts, and better navigation.

2. What to Look for in a Redmine Theme

Not all themes are equal. Evaluate these criteria before choosing:

  • Redmine version compatibility — confirm support for your exact version.
  • Responsive design — essential if team members access Redmine from mobile devices.
  • Customization options — ability to change colors, logos, and layouts without editing code.
  • Plugin compatibility — themes that break plugin views cause more problems than they solve.
  • Active maintenance — themes updated regularly to match new Redmine releases.
  • Documentation and support — installation guides and responsive vendor support.

3. How to Install a Redmine Theme

The installation path depends on your Redmine version:

Redmine 6.x

  • Extract the theme into themes/ at the root of your Redmine installation.
  • Precompile assets: RAILS_ENV=production bundle exec rake assets:precompile
  • Restart your application server (Passenger, Puma, or Unicorn).
  • Go to Administration → Settings → Display and select the new theme.

Redmine 5.x and earlier

  • Extract the theme into public/themes/ inside your Redmine directory.
  • Restart your application server (Passenger, Puma, or Unicorn).
  • Go to Administration → Settings → Display and select the new theme.

In Redmine 6, themes are loaded through the asset pipeline, so the precompile step is mandatory. In Redmine 5.x and earlier, themes are served as static files and only require a server restart.

In both cases, clear your browser cache after switching themes. Some premium themes include a live customizer for configuration without server access.