docs/_static/css/fontawesome.css

/*
 * FontAwesome 7.2.0, subset to the glyphs this theme actually uses
 * (see _static/fonts/fa-*-subset.woff2). Don't depend on a third-party
 * CDN. FontAwesome Free is CC BY 4.0 / SIL OFL 1.1.
 */

@font-face {
    font-family: "Font Awesome 7 Free";
    font-style: normal;
    font-weight: 900;
    font-display: block;
    src: url(../fonts/fa-solid-subset.woff2) format("woff2");
}

@font-face {
    font-family: "Font Awesome 7 Free";
    font-style: normal;
    font-weight: 400;
    font-display: block;
    src: url(../fonts/fa-regular-subset.woff2) format("woff2");
}

@font-face {
    font-family: "Font Awesome 7 Brands";
    font-style: normal;
    font-weight: 400;
    font-display: block;
    src: url(../fonts/fa-brands-subset.woff2) format("woff2");
}

/* Family-name vars consumed by doc-icons.css / left-sidebar.css. */
:root {
    --fa-family-classic: "Font Awesome 7 Free";
    --fa-family-brands: "Font Awesome 7 Brands";
}

/* Base icon rendering (replaces FontAwesome's core rules). */
.fa-solid,
.fa-regular,
.fa-brands {
    display: inline-block;
    font-style: normal;
    font-variant: normal;
    line-height: 1;
    text-rendering: auto;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.fa-solid {
    font-family: "Font Awesome 7 Free";
    font-weight: 900;
}

.fa-regular {
    font-family: "Font Awesome 7 Free";
    font-weight: 400;
}

.fa-brands {
    font-family: "Font Awesome 7 Brands";
    font-weight: 400;
}

/* Glyphs referenced by class (the doc-icons set their codepoint via
   --doc-icon and don't need entries here). */
.fa-bars::before { content: "\f0c9"; }
.fa-chevron-up::before { content: "\f077"; }
.fa-magnifying-glass::before { content: "\f002"; }
.fa-sun::before { content: "\f185"; }
.fa-moon::before { content: "\f186"; }
.fa-github::before { content: "\f09b"; }
.fa-python::before { content: "\f3e2"; }