lights_update_colour:
  alias: Light Colour - Update
  sequence:
    - delay: 00:00:01
    - service: light.turn_on
      data_template:
        entity_id: >-
          {%- for state, all_on_lights in states.light | groupby("state") -%}
            {%- if state == "on" -%}
              {%- for light in all_on_lights | rejectattr("attributes.is_hue_group") -%}
                {%- if not(loop.first) -%}, {% endif %}
                {{- light.entity_id -}}
              {%- endfor -%}
            {%- endif -%}
          {%- endfor %}
        brightness: '{{ states.input_slider.brightness.state | int }}'
        rgb_color: ['{{ states.input_slider.red.state | int }}', '{{ states.input_slider.green.state | int }}', '{{ states.input_slider.blue.state | int }}']