The Material Dark Red Theme by 95gabor

Add the following code to your configuration.yaml file (reboot required).

frontend:
  ... # your configuration.
  themes: !include_dir_merge_named themes
  ... # your configuration.

1. Go to the Community Store.
2. Search for Material Dark Red.
3. Navigate to Material Dark Red theme.
4. Press Install.
5. Go to services and trigger the frontend.reload_themes service.

Clone this repository in your existing (or create it) themes/ folder.

cd themes/
git clone https://github.com/home-assistant-community-themes/material-dark-red.git

Or using submodules:

cd themes/
git submodule add https://github.com/home-assistant-community-themes/material-dark-red.git