Frontend

This offers the official frontend to control Home Assistant.

# Example configuration.yaml entry
frontend:

Themes

Starting with version 0.49 you can define themes:

Example:

# Example configuration.yaml entry
frontend:
  themes:
    happy:
      primary-color: pink
    sad:
      primary-color: blue

The example above defined two themes named happy and sad. For each theme you can set values for CSS variables. For a partial list of variables used by the main frontend see ha-style.html.

There are 2 themes-related services:

• frontend.reload_themes: reloads theme configuration from your configuration.yaml file.
• frontend.set_theme(name): sets backend-preferred theme name.

Example in automation:

Set a theme at the startup of Home Assistant:

automation:
  - alias: 'Set theme at startup'
    initial_state: 'on'
    trigger:
     - platform: homeassistant
       event: start
    action:
      service: frontend.set_theme
      data:
        name: happy

To enable “night mode”:

automation:
  - alias: 'Set dark theme for the night'
    initial_state: True
    trigger:
      - platform: time
        at: '21:00'
    action:
      - service: frontend.set_theme
        data:
          name: darkred

Manual Theme Selection

When themes are enabled in the configuration.yaml file, a new option will show up in the Configuration panel under configuration.yaml called “Set a theme.” You can then choose any installed theme from the dropdown list and it will be applied immediately.

Loading extra HTML

Starting with version 0.53 you can specify extra HTML files to load.

Example:

# Example configuration.yaml entry
frontend:
  extra_html_url:
    - https://example.com/file1.html
    - /file2.html

Those will be loaded via <link rel='import' href='' async> on any page (states and panels)