🔹 Card-mod - Super-charge your themes!

Go download this:
https://github.com/google/material-design-icons/blob/96206ade0e8325ac4c4ce9d49dc4ef85241689e1/font/MaterialIcons-Regular.ttf?raw=true
Then see this:

Then test out this theme file:

slate:
  card-mod-theme: slate
  card-mod-root-yaml: |
    .: |
        mwc-icon-button[slot="trigger"]::after {
            font-size: 22px;
            height: 20px;
            width: 200px;
            margin-left: 0px;
            margin-right: 0px;
            content: "oldhere";
            position: absolute !important;
            top: 14px;
            right: 0px;
        }
        mwc-icon-button[slot="trigger"]::before {
            content: "done";
            font-size: 22px;
            height: 20px;
            width: 200px;
            margin-left: 0px;
            margin-right: 25px;
            position: absolute !important;
            top: 14px;
            right: 0px;
            font-family: Material Icons;
        }

Increase the last margin-right if you need to.