HA1

- alias: TV_LED_On
  trigger:
    - entity_id: media_player.denon
      platform: state
      to: 'on'
  action:
  - service: light.turn_on
    entity_id: light.nappali_tv_rgb
    data_template:
      color_name: >
        {% set map = {'HEOS Music': 'green', 'Game': 'blue', 'Media Player': 'red'} %}
        {% if trigger.to_state.attributes.source in map %}
          {{ map[trigger.to_state.attributes.source] }}
        {% else %}
          yellow
        {% endif %}