Dashboard2/Vuetify/Icons How to use?

Dashboard
1

With Dashboard2, I'm trying to use buttons/icons based on Vuetify -- with moderate success.
For example, this works:

          <span style="margin-left:10px">          
            <v-icon style="cursor:pointer" 
              color="indigo-darken-4" @click="rSelect(3)">
              mdi-cached
            </v-icon>
          </span>

But these examples don't work at all:

  <span style="margin-left:10px">
    <v-icon icon="fas fa-plus" />  <!-- This renders a FontAwesome icon -->
    <v-icon icon="mdi:mdi-minus" /> <!-- This renders a MDI icon -->
  </span>

Unfortunately I can't find any further information specifically for the correct handling of NodeRed / Vueitfy to be able to use the different buttons and icons.
Is there a good manual for this? !

Help/links are very welcome

2

Dashboard does not have any resources baked in for font awesome icons.

This is just wrong syntax.

There are ways to bring in other icons than mdi . I think easiest will be to use svg.