Icons

Material Design Iconic Font

This is the default icon set in Spyre Theme.

HTML

<i class="zmdi zmdi-favorite"></i>
<i class="zmdi zmdi-palette text-primary"></i>
<i class="zmdi zmdi-refresh zmdi-hc-spin"></i>
<i class="zmdi zmdi-turning-sign zmdi-hc-lg"></i>

CSS

<!-- Vendor Stylesheets -->
<link href="../assets/vendor/material-design-iconic-font/dist/css/material-design-iconic-font.min.css" rel="stylesheet">

For more Details see Material Design Iconic Font Documentation

Font Awesome

HTML

<i class="fab fa-500px"></i>
<i class="fab fa-amazon text-primary"></i>
<i class="fab fa-spinner fa-spin"></i>
<i class="fas fa-ghost fa-sm"></i>

CSS

<!-- Vendor Stylesheets -->
<link href="../assets/vendor/@fortawesome/fontawesome-free/css/all.min.css" rel="stylesheet">

For more Details see Font Awesome Documentation