Icon animations are not working with card mod

[safe lily]

so im trying to add a charging badge to my vacuum cleaner but im unable to animate anything and its not working for some reason

type: custom:mushroom-template-card
entity: vacuum.robot_vacuum
icon: mdi:robot-vacuum
primary: Test
layout: vertical
card_mod:
  style:
    mushroom-shape-icon$: |
      ha-icon {
        --icon-animation: charge 3s steps(1) infinite;
      }
      @keyframes charge {
        0% { clip-path: polygon(0% 0%, 0% 100%, 34% 100%, 34% 24%, 67% 24%, 67% 84%, 34% 84%, 34% 100%, 100% 100%, 100% 0%); }
        20% { clip-path: polygon(0% 0%, 0% 100%, 34% 100%, 34% 24%, 67% 24%, 67% 64%, 34% 64%, 34% 100%, 100% 100%, 100% 0%); }
        40% { clip-path: polygon(0% 0%, 0% 100%, 34% 100%, 34% 24%, 67% 24%, 67% 44%, 34% 44%, 34% 100%, 100% 100%, 100% 0%); }
        60% { clip-path: polygon(0% 0%, 0% 100%, 34% 100%, 34% 24%, 67% 24%, 67% 24%, 34% 24%, 34% 100%, 100% 100%, 100% 0%); }
      }```

that is my code

and it does nothing for some reason

[spring oriole]

This worked for me: ```yaml
type: custom:mushroom-template-card
entity: vacuum.robot_vacuum
icon: mdi:robot-vacuum
primary: Test
layout: vertical
card_mod:
style: |
ha-state-icon {
animation: charge linear infinite 3s;
}
@keyframes charge {
0% { clip-path: polygon(0% 0%, 0% 100%, 34% 100%, 34% 24%, 67% 24%, 67% 84%, 34% 84%, 34% 100%, 100% 100%, 100% 0%); }
20% { clip-path: polygon(0% 0%, 0% 100%, 34% 100%, 34% 24%, 67% 24%, 67% 64%, 34% 64%, 34% 100%, 100% 100%, 100% 0%); }
40% { clip-path: polygon(0% 0%, 0% 100%, 34% 100%, 34% 24%, 67% 24%, 67% 44%, 34% 44%, 34% 100%, 100% 100%, 100% 0%); }
60% { clip-path: polygon(0% 0%, 0% 100%, 34% 100%, 34% 24%, 67% 24%, 67% 24%, 34% 24%, 34% 100%, 100% 100%, 100% 0%); }
}

Though, I think that animation is intended for the battery icon (mdi:battery).

[safe lily]

Can’t I use it for a badge instead?