Mushroom Cards - Build a beautiful dashboard easily 🍄 (Part 2)

[Frosty]

look at this guide

scroll down to “What the $ and .: | symbols do”

you will need something like this

card_mod:
  style:
    mushroom-shape-icon$: |
      .shape {
        background: blue !important;
      }
    .: |
      ha-card {
        background: red;
      }