v3_button_ac:
  template: v3_button
  icon: mdi:air-conditioner
  state_display: |
    [[[
      if (!entity) {
        return "Unavailable";
      }

      if (entity.state === "off") {
        return "Off";
      }
      return entity.attributes.hvac_action.charAt(0).toUpperCase() +
        entity.attributes.hvac_action.slice(1) + ' to ' +
        entity.attributes.temperature + '°';
    ]]]
  state:
    - value: 'off'
      operator: '!='
      styles:
        card:
          - background-color: white
          - color: black
        icon:
          - color: var(--primary-color)
        state:
          - color: black