Frontend


This offers the official frontend to control Home Assistant.

# Example configuration.yaml entry
frontend:

Configuration Variables

javascript_version

(string)(Optional)Version of the JavaScript to serve to clients. Options: es5 - transpiled so old browsers understand it. latest - not transpiled, so will work on recent browsers only. auto - select a version according to the browser user-agent. The value in the config can be overiden by putting es5 or latest in the URL. For example http://localhost:8123/states?es5

Default value: es5

themes

(map)(Optional)Allow to define different themes. See below for further details.

[identifier]

(list | map)(Required)Name to use in the frontend.

[css-identifier]

(list | string)(Required)The CSS identifier.

extra_html_url

(list)(Optional)List of addtional resources to load in latest javascript mode.

extra_html_url_es5

(list)(Optional)List of addtional resources to load in es5 javascript mode.

development_repo

(string)(Optional)Allow to point to a directory containing frontend files instead of taking them from a pre-built PyPI package. Useful for Frontend development.

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 General called “Set a theme.” You can then choose any installed theme from the dropdown list and it will be applied immediately.

Set a theme

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).

Manual Language Selection

The browser language is automatically detected. To use a different language, go to General in the Configuration panel and select a one from “Choose a Language”. It will be applied immediately.

Choose a Language