First commit

src/fonts/_mixins.scss

@@ -0,0 +1,55 @@
+// @see https://github.com/twbs/bootstrap/blob/main/scss/_functions.scss
+@function material-icons-str-replace($string, $search, $replace: '') {
+  $index: str-index($string, $search);
+  @if $index {
+    @return str-slice($string, 1, $index - 1) + $replace +
+      material-icons-str-replace(
+        str-slice($string, $index + str-length($search)),
+        $search,
+        $replace
+      );
+  }
+  @return $string;
+}
+
+@mixin material-icons-font-class($font-family) {
+  font-family: $font-family;
+  font-weight: normal;
+  font-style: normal;
+  font-size: $material-icons-font-size;
+  line-height: 1;
+  letter-spacing: normal;
+  text-transform: none;
+  display: inline-block;
+  white-space: nowrap;
+  word-wrap: normal;
+  direction: ltr;
+  -webkit-font-smoothing: antialiased; // Support for all WebKit browsers
+  -moz-osx-font-smoothing: grayscale; // Support for Firefox
+  text-rendering: optimizeLegibility; // Support for Safari and Chrome
+  font-feature-settings: 'liga'; // Support for IE
+}
+
+@mixin material-icons-font($font-family) {
+  $class-name: to-lower-case($font-family);
+  $class-name: material-icons-str-replace($class-name, ' ', '-');
+  $font-file: $material-icons-font-path + $class-name;
+
+  @font-face {
+    font-family: $font-family;
+    font-style: normal;
+    font-weight: 400;
+    font-display: $material-icons-font-display;
+    src: url('#{$font-file}.woff2') format('woff2'),
+      url('#{$font-file}.woff') format('woff');
+  }
+
+  .#{$class-name} {
+    @include material-icons-font-class($font-family);
+  }
+}
+
+@mixin material-icons() {
+  @warn "material-icons() Sass mixin has been deprecated as of 1.0. Use '@extend .material-icons;' instead of '@include material-icons();'.";
+  @include material-icons-font-class('Material Icons');
+}