Icon color flashing code

[SupremeSports (Jean Gauthier)]

Here’s a code that will make you icon color flash every second:

sensor:
  - platform: template
    sensors:
      flashing_pulse:
        entity_id: 
          - sensor.dates_second
        value_template: >
          {% if states('sensor.dates_second')|int % 2 == 0 %}
            on
          {% else %}
            off
          {% endif %}
      flashing_icon_sensor:
		entity_id: 
          - sensor.dates_second
        value_template: >
          on

customize:
  sensor.flashing_icon_sensor:
  custom_ui_state_card: state-card-custom-ui
  templates:
    icon_color: >
      if (entities['sensor.flashing_pulse'].state === 'on') return '#FFC000';
      return '#2F7EFD';

counter:
  heartbeat_counter:
    name: Heartbeat Counter
    restore: true
    minimum: 1
    maximum: 9999
    initial: 1
    step: 1

automation:
  - alias: Publish Heartbeat
    trigger:
      - platform: time_pattern
        seconds: '/1'
    action:
      - service: counter.increment
        entity_id: counter.heartbeat_counter
          
  - alias: Reset Heartbeat
    trigger:
      - platform: template
        value_template: '{{ (states.counter.heartbeat_counter.state|int) >= (states.counter.heartbeat_counter.attributes.maximum|int) }}'
        for: "00:00:01"
    action:
      - service: counter.reset
        entity_id: counter.heartbeat_counter

Video: https://www.facebook.com/jean.gauthier.96/videos/10157567550057270/