add dark/light mode natively, supported from 2021.06

[basnijholt]

I am implementing the new native light/dark mode.

https://www.home-assistant.io/blog/2021/06/02/release-20216/#support-for-custom-dark-mode-themes

https://www.home-assistant.io/integrations/frontend/#service-set_theme

However, currently I think I am experiencing a bug. Can anyone confirm that this doesn't work:

service: frontend.set_theme
data:
  name: default
  mode: light

where as:

service: frontend.set_theme
data:
  name: default
  mode: dark

does work...

[woutervanoorschot]

Awesome that you are working on automatic dark mode!

I believe (as far as I have knowledge about the themes) the set_theme function sets a theme for the state (dark or light) that home assistant is in.

I have called the service once to set a theme for dark mode, and once for the preferred theme in light mode. These themes are then used when selecting dark/light mode in settings, or when the OS/browser theme changes and the theme mode is 'auto'.

So it isn't related to the new dark+light themes, I think it was added to allow for different dark/light themes for the time being (before implementing and releasing the new dark+light themes)

Hope this can help, and I'm looking forward to dark+light mode ios themes!

[peter-dolkens]

28 you say...

[basnijholt]

Are you counting up to some different number?

[broyuken]

I went ahead and modified your config to have full support for automatic dark mode. Would you like the file? Also for your original question I've found that you have to make 2 service calls to set the theme. One for if its in light mode, another for if its in dark mode. So as I have mine set up with no automations I have the light blue theme set for when I have a device in light mode, and dark blue when I have a device set to dark mode.