Default Theme Environment Variable

I’ve been using Vikunja for awhile now self-hosted, and I am really loving it. One thing that kind of annoys me is that Vikunja always seems to default to light mode, and there is not way to make dark mode the default. It would be awesome to have an environment variable to set a default theme on start up, something like defaultsettings.theme in yml or VIKUNJA_DEFAULTSETTINGS_THEME for docker compose. Thanks for all the awesome work!

It defaults to the color scheme you set in your browser. If you set that to dark mode, it should display the frontend in the dark scheme if you open it. Alternatively it will load the color scheme you saved after login, starting with the next release (already in unstable)