🔹 Card-mod - Super-charge your themes!

[dcapslock (Darryn Capes-Davis)]

@larralex

I tried various things like

generic:
  card-mod-theme: generic
  card-mod-card: |
    round-slider$: |
      .slider {
        stroke-width: 15px !important;
        --round-slider-path-color: slategrey !important;
      }

Your are mixing CSS declaration and YAML. If you use card-mod-card: then the entry needs to be CSS string (can be multiline). If you want to use yaml then use card-mod-card-yaml

So (untested) your theme entry should be more like

generic:
  card-mod-theme: generic
  card-mod-card-yaml: |
    round-slider$: |
      .slider {
        stroke-width: 15px !important;
        --round-slider-path-color: slategrey !important;
      }