Generic Hygrostat

Hi all, I’m tring this:


Because I have a humidity sensor and a relè and idea is to switch on/off the humidifier with HA…

But I don’t how to insert the card to my lovelace…

Thanks

Here is what I use:
Edit dashboard(3 dot menu), click add card, select humidifier card
I edit the card to add the style below,( after adding card mod in HACS) which makes the label turn red when it turns on.

type: humidifier
entity: humidifier.furnace_humidifier
style: |
  ha-card {
    color: {% if is_state('switch.furnace_humidifier', 'on') %} red {% endif %};
  }

image