diff --git a/src/core/directives/format-text.ts b/src/core/directives/format-text.ts
index 0baf46f0185..80355890d3e 100644
--- a/src/core/directives/format-text.ts
+++ b/src/core/directives/format-text.ts
@@ -465,7 +465,6 @@ export class CoreFormatTextDirective implements OnChanges, OnDestroy, AsyncDirec
         const videos = Array.from(div.querySelectorAll('video'));
         const iframes = Array.from(div.querySelectorAll('iframe'));
         const buttons = Array.from(div.querySelectorAll<HTMLElement>('.button'));
-        const icons = Array.from(div.querySelectorAll('i.fa,i.fas,i.far,i.fab'));
         const elementsWithInlineStyles = Array.from(div.querySelectorAll<HTMLElement>('*[style]'));
         const stopClicksElements = Array.from(div.querySelectorAll<HTMLElement>('button,input,select,textarea'));
         const frames = Array.from(
@@ -546,6 +545,7 @@ export class CoreFormatTextDirective implements OnChanges, OnDestroy, AsyncDirec
         });
 
         // Handle Font Awesome icons to be rendered by the app.
+        const icons = Array.from(div.querySelectorAll('.fa,.fas,.far,.fab,.fa-solid,.fa-regular,.fa-brands'));
         icons.forEach((icon) => {
             CoreIcons.replaceCSSIcon(icon);
         });
diff --git a/src/core/features/course/tests/behat/communication.feature b/src/core/features/course/tests/behat/communication.feature
index cbfe8c954ba..4f7c6e1a4b1 100644
--- a/src/core/features/course/tests/behat/communication.feature
+++ b/src/core/features/course/tests/behat/communication.feature
@@ -2,7 +2,8 @@
 Feature: Use custom communication link in course
 
   Background:
-    Given the following "users" exist:
+    Given the Moodle site is compatible with this feature
+    And the following "users" exist:
       | username | firstname | lastname | email                |
       | teacher1 | Teacher   | 1        | teacher1@example.com |
       | student1 | Student   | 1        | student1@example.com |
diff --git a/src/core/singletons/icons.ts b/src/core/singletons/icons.ts
index 20860b0c4d4..2a49c7c2811 100644
--- a/src/core/singletons/icons.ts
+++ b/src/core/singletons/icons.ts
@@ -112,9 +112,20 @@ export class CoreIcons {
                 return;
             }
 
-            const firstPart = faPart[1].split('-')[0];
+            const afterFa = faPart[1];
 
-            switch (firstPart) {
+            const specialClasses = ['2xs', 'xs', 'sm', 'lg', 'xl', '2xl', 'fw', 'sharp', 'rotate',
+                '1x', '2x', '3x', '4x', '5x', '6x', '7x', '8x', '9x', '10x',
+                'flip-horizontal', 'flip-vertical', 'flip-both', 'spin', 'pulse', 'inverse',
+                'border', 'pull-left', 'pull-right', 'fixed-width', 'list-item', 'bordered', 'spinning',
+                'stack', 'stack-1x', 'stack-2x', 'inverse', 'sr-only', 'sr-only-focusable', 'border'];
+
+            // Class is defining special cases.
+            if (afterFa && specialClasses.includes(afterFa)) {
+                return;
+            }
+
+            switch (afterFa) {
                 // Class is defining library.
                 case 'solid':
                     library = 'solid';
@@ -126,20 +137,9 @@ export class CoreIcons {
                 case 'brands':
                     library = 'brands';
                     break;
-                // Class is defining special cases.
-                case '2xs':
-                case 'xs':
-                case 'sm':
-                case 'lg':
-                case 'xl':
-                case '2xl':
-                case 'fw':
-                case 'sharp':
-                case 'rotate':
-                    return;
                 // Class is defining the icon name (fa-ICONNAME).
                 default:
-                    iconName = faPart[1];
+                    iconName = afterFa;
                     break;
             }
         });
diff --git a/src/core/tests/behat/fontawesome.feature b/src/core/tests/behat/fontawesome.feature
new file mode 100644
index 00000000000..1be41da6eb3
--- /dev/null
+++ b/src/core/tests/behat/fontawesome.feature
@@ -0,0 +1,21 @@
+@core @app @javascript
+Feature: Fontawesome icons are correctly shown in the app
+
+  Background:
+    Given the Moodle site is compatible with this feature
+    And the following "users" exist:
+      | username |
+      | student1 |
+    And the following "courses" exist:
+      | fullname | shortname |
+      | Course 1 | C1        |
+    And the following "course enrolments" exist:
+      | user     | course | role    |
+      | student1 | C1     | student |
+    And the following "activities" exist:
+      | activity   | idnumber | course | name  | intro | printlastmodified | content |
+      | page       | page     | C1     | Page  | -     | false             | <i class="fa fa-user"></i><span class="fas fa-hippo"></span><i class="fa-solid fa-poo"></i><i class="fa-regular fa-snowflake fa-10x"></i><i class="fa-brands fa-creative-commons"></i><i class="fa fa-bomb fa-flip-both"></i> |
+
+  Scenario: View fontawesome icons in the app
+    Given I entered the page activity "Page" on course "Course 1" as "student1" in the app
+    Then the UI should match the snapshot
diff --git a/src/core/tests/behat/snapshots/fontawesome-icons-are-correctly-shown-in-the-app-view-fontawesome-icons-in-the-app_7.png b/src/core/tests/behat/snapshots/fontawesome-icons-are-correctly-shown-in-the-app-view-fontawesome-icons-in-the-app_7.png
new file mode 100644
index 00000000000..cb5a0fbb2d4
Binary files /dev/null and b/src/core/tests/behat/snapshots/fontawesome-icons-are-correctly-shown-in-the-app-view-fontawesome-icons-in-the-app_7.png differ
diff --git a/src/theme/components/ion-icon.scss b/src/theme/components/ion-icon.scss
new file mode 100644
index 00000000000..3abb464553e
--- /dev/null
+++ b/src/theme/components/ion-icon.scss
@@ -0,0 +1,685 @@
+// Ionic icon.
+ion-icon {
+    position: relative;
+
+    &.icon-slash::after,
+    &.icon-backslash::after {
+        content: " ";
+        position: absolute;
+        top: 0;
+        bottom: 0;
+        left: 0;
+        right: 0;
+        background-color: var(--danger);
+        -webkit-mask: url("/assets/fonts/font-awesome/solid/slash.svg") no-repeat 50% 50%;
+        mask: url("/assets/fonts/font-awesome/solid/slash.svg") no-repeat 50% 50%;
+    }
+
+    &.icon-slash::after {
+        -webkit-transform: scale(-1, 1);
+        transform: scale(-1, 1);
+    }
+}
+
+// The following code is part of the Fontawesome css file that can be found
+// https://github.com/FortAwesome/Font-Awesome/blob/6.x/css/fontawesome.css
+
+/*!
+ * Font Awesome Free 6.5.1 by @fontawesome - https://fontawesome.com
+ * License - https://fontawesome.com/license/free (Icons: CC BY 4.0, Fonts: SIL OFL 1.1, Code: MIT License)
+ * Copyright 2023 Fonticons, Inc.
+ */
+core-format-text ion-icon {
+    &.fa,
+    &.fa-classic,
+    &.fa-sharp,
+    &.fas,
+    &.fa-solid,
+    &.far,
+    &.fa-regular,
+    &.fab,
+    &.fa-brands {
+        -moz-osx-font-smoothing: grayscale;
+        -webkit-font-smoothing: antialiased;
+        display: var(--fa-display, inline-block);
+        font-style: normal;
+        font-variant: normal;
+        line-height: 1;
+        text-rendering: auto;
+    }
+
+    &.fa-1x {
+        font-size: 1em;
+    }
+
+    &.fa-2x {
+        font-size: 2em;
+    }
+
+    &.fa-3x {
+        font-size: 3em;
+    }
+
+    &.fa-4x {
+        font-size: 4em;
+    }
+
+    &.fa-5x {
+        font-size: 5em;
+    }
+
+    &.fa-6x {
+        font-size: 6em;
+    }
+
+    &.fa-7x {
+        font-size: 7em;
+    }
+
+    &.fa-8x {
+        font-size: 8em;
+    }
+
+    &.fa-9x {
+        font-size: 9em;
+    }
+
+    &.fa-10x {
+        font-size: 10em;
+    }
+
+    &.fa-2xs {
+        font-size: 0.625em;
+        line-height: 0.1em;
+        vertical-align: 0.225em;
+    }
+
+    &.fa-xs {
+        font-size: 0.75em;
+        line-height: 0.08333em;
+        vertical-align: 0.125em;
+    }
+
+    &.fa-sm {
+        font-size: 0.875em;
+        line-height: 0.07143em;
+        vertical-align: 0.05357em;
+    }
+
+    &.fa-lg {
+        font-size: 1.25em;
+        line-height: 0.05em;
+        vertical-align: -0.075em;
+    }
+
+    &.fa-xl {
+        font-size: 1.5em;
+        line-height: 0.04167em;
+        vertical-align: -0.125em;
+    }
+
+    &.fa-2xl {
+        font-size: 2em;
+        line-height: 0.03125em;
+        vertical-align: -0.1875em;
+    }
+
+    &.fa-fw {
+        text-align: center;
+        width: 1.25em;
+    }
+
+    &.fa-ul {
+        list-style-type: none;
+        margin-left: var(--fa-li-margin, 2.5em);
+        padding-left: 0;
+    }
+
+    &.fa-ul>li {
+        position: relative;
+    }
+
+    &.fa-li {
+        left: calc(var(--fa-li-width, 2em) * -1);
+        position: absolute;
+        text-align: center;
+        width: var(--fa-li-width, 2em);
+        line-height: inherit;
+    }
+
+    &.fa-border {
+        border-color: var(--fa-border-color, #eee);
+        border-radius: var(--fa-border-radius, 0.1em);
+        border-style: var(--fa-border-style, solid);
+        border-width: var(--fa-border-width, 0.08em);
+        padding: var(--fa-border-padding, 0.2em 0.25em 0.15em);
+    }
+
+    &.fa-pull-left {
+        float: left;
+        margin-right: var(--fa-pull-margin, 0.3em);
+    }
+
+    &.fa-pull-right {
+        float: right;
+        margin-left: var(--fa-pull-margin, 0.3em);
+    }
+
+    &.fa-beat {
+        -webkit-animation-name: fa-beat;
+        animation-name: fa-beat;
+        -webkit-animation-delay: var(--fa-animation-delay, 0s);
+        animation-delay: var(--fa-animation-delay, 0s);
+        -webkit-animation-direction: var(--fa-animation-direction, normal);
+        animation-direction: var(--fa-animation-direction, normal);
+        -webkit-animation-duration: var(--fa-animation-duration, 1s);
+        animation-duration: var(--fa-animation-duration, 1s);
+        -webkit-animation-iteration-count: var(--fa-animation-iteration-count, infinite);
+        animation-iteration-count: var(--fa-animation-iteration-count, infinite);
+        -webkit-animation-timing-function: var(--fa-animation-timing, ease-in-out);
+        animation-timing-function: var(--fa-animation-timing, ease-in-out);
+    }
+
+    &.fa-bounce {
+        -webkit-animation-name: fa-bounce;
+        animation-name: fa-bounce;
+        -webkit-animation-delay: var(--fa-animation-delay, 0s);
+        animation-delay: var(--fa-animation-delay, 0s);
+        -webkit-animation-direction: var(--fa-animation-direction, normal);
+        animation-direction: var(--fa-animation-direction, normal);
+        -webkit-animation-duration: var(--fa-animation-duration, 1s);
+        animation-duration: var(--fa-animation-duration, 1s);
+        -webkit-animation-iteration-count: var(--fa-animation-iteration-count, infinite);
+        animation-iteration-count: var(--fa-animation-iteration-count, infinite);
+        -webkit-animation-timing-function: var(--fa-animation-timing, cubic-bezier(0.28, 0.84, 0.42, 1));
+        animation-timing-function: var(--fa-animation-timing, cubic-bezier(0.28, 0.84, 0.42, 1));
+    }
+
+    &.fa-fade {
+        -webkit-animation-name: fa-fade;
+        animation-name: fa-fade;
+        -webkit-animation-delay: var(--fa-animation-delay, 0s);
+        animation-delay: var(--fa-animation-delay, 0s);
+        -webkit-animation-direction: var(--fa-animation-direction, normal);
+        animation-direction: var(--fa-animation-direction, normal);
+        -webkit-animation-duration: var(--fa-animation-duration, 1s);
+        animation-duration: var(--fa-animation-duration, 1s);
+        -webkit-animation-iteration-count: var(--fa-animation-iteration-count, infinite);
+        animation-iteration-count: var(--fa-animation-iteration-count, infinite);
+        -webkit-animation-timing-function: var(--fa-animation-timing, cubic-bezier(0.4, 0, 0.6, 1));
+        animation-timing-function: var(--fa-animation-timing, cubic-bezier(0.4, 0, 0.6, 1));
+    }
+
+    &.fa-beat-fade {
+        -webkit-animation-name: fa-beat-fade;
+        animation-name: fa-beat-fade;
+        -webkit-animation-delay: var(--fa-animation-delay, 0s);
+        animation-delay: var(--fa-animation-delay, 0s);
+        -webkit-animation-direction: var(--fa-animation-direction, normal);
+        animation-direction: var(--fa-animation-direction, normal);
+        -webkit-animation-duration: var(--fa-animation-duration, 1s);
+        animation-duration: var(--fa-animation-duration, 1s);
+        -webkit-animation-iteration-count: var(--fa-animation-iteration-count, infinite);
+        animation-iteration-count: var(--fa-animation-iteration-count, infinite);
+        -webkit-animation-timing-function: var(--fa-animation-timing, cubic-bezier(0.4, 0, 0.6, 1));
+        animation-timing-function: var(--fa-animation-timing, cubic-bezier(0.4, 0, 0.6, 1));
+    }
+
+    &.fa-flip {
+        -webkit-animation-name: fa-flip;
+        animation-name: fa-flip;
+        -webkit-animation-delay: var(--fa-animation-delay, 0s);
+        animation-delay: var(--fa-animation-delay, 0s);
+        -webkit-animation-direction: var(--fa-animation-direction, normal);
+        animation-direction: var(--fa-animation-direction, normal);
+        -webkit-animation-duration: var(--fa-animation-duration, 1s);
+        animation-duration: var(--fa-animation-duration, 1s);
+        -webkit-animation-iteration-count: var(--fa-animation-iteration-count, infinite);
+        animation-iteration-count: var(--fa-animation-iteration-count, infinite);
+        -webkit-animation-timing-function: var(--fa-animation-timing, ease-in-out);
+        animation-timing-function: var(--fa-animation-timing, ease-in-out);
+    }
+
+    &.fa-shake {
+        -webkit-animation-name: fa-shake;
+        animation-name: fa-shake;
+        -webkit-animation-delay: var(--fa-animation-delay, 0s);
+        animation-delay: var(--fa-animation-delay, 0s);
+        -webkit-animation-direction: var(--fa-animation-direction, normal);
+        animation-direction: var(--fa-animation-direction, normal);
+        -webkit-animation-duration: var(--fa-animation-duration, 1s);
+        animation-duration: var(--fa-animation-duration, 1s);
+        -webkit-animation-iteration-count: var(--fa-animation-iteration-count, infinite);
+        animation-iteration-count: var(--fa-animation-iteration-count, infinite);
+        -webkit-animation-timing-function: var(--fa-animation-timing, linear);
+        animation-timing-function: var(--fa-animation-timing, linear);
+    }
+
+    &.fa-spin {
+        -webkit-animation-name: fa-spin;
+        animation-name: fa-spin;
+        -webkit-animation-delay: var(--fa-animation-delay, 0s);
+        animation-delay: var(--fa-animation-delay, 0s);
+        -webkit-animation-direction: var(--fa-animation-direction, normal);
+        animation-direction: var(--fa-animation-direction, normal);
+        -webkit-animation-duration: var(--fa-animation-duration, 2s);
+        animation-duration: var(--fa-animation-duration, 2s);
+        -webkit-animation-iteration-count: var(--fa-animation-iteration-count, infinite);
+        animation-iteration-count: var(--fa-animation-iteration-count, infinite);
+        -webkit-animation-timing-function: var(--fa-animation-timing, linear);
+        animation-timing-function: var(--fa-animation-timing, linear);
+    }
+
+    &.fa-spin-reverse {
+        --fa-animation-direction: reverse;
+    }
+
+    &.fa-pulse,
+    &.fa-spin-pulse {
+        -webkit-animation-name: fa-spin;
+        animation-name: fa-spin;
+        -webkit-animation-direction: var(--fa-animation-direction, normal);
+        animation-direction: var(--fa-animation-direction, normal);
+        -webkit-animation-duration: var(--fa-animation-duration, 1s);
+        animation-duration: var(--fa-animation-duration, 1s);
+        -webkit-animation-iteration-count: var(--fa-animation-iteration-count, infinite);
+        animation-iteration-count: var(--fa-animation-iteration-count, infinite);
+        -webkit-animation-timing-function: var(--fa-animation-timing, steps(8));
+        animation-timing-function: var(--fa-animation-timing, steps(8));
+    }
+
+    @media (prefers-reduced-motion: reduce) {
+        &.fa-beat,
+        &.fa-bounce,
+        &.fa-fade,
+        &.fa-beat-fade,
+        &.fa-flip,
+        &.fa-pulse,
+        &.fa-shake,
+        &.fa-spin,
+        &.fa-spin-pulse {
+            -webkit-animation-delay: -1ms;
+            animation-delay: -1ms;
+            -webkit-animation-duration: 1ms;
+            animation-duration: 1ms;
+            -webkit-animation-iteration-count: 1;
+            animation-iteration-count: 1;
+            -webkit-transition-delay: 0s;
+            transition-delay: 0s;
+            -webkit-transition-duration: 0s;
+            transition-duration: 0s;
+        }
+    }
+
+    @-webkit-keyframes fa-beat {
+        0%,
+        90% {
+            -webkit-transform: scale(1);
+            transform: scale(1);
+        }
+
+        45% {
+            -webkit-transform: scale(var(--fa-beat-scale, 1.25));
+            transform: scale(var(--fa-beat-scale, 1.25));
+        }
+    }
+
+    @keyframes fa-beat {
+        0%,
+        90% {
+            -webkit-transform: scale(1);
+            transform: scale(1);
+        }
+
+        45% {
+            -webkit-transform: scale(var(--fa-beat-scale, 1.25));
+            transform: scale(var(--fa-beat-scale, 1.25));
+        }
+    }
+
+    @-webkit-keyframes fa-bounce {
+        0% {
+            -webkit-transform: scale(1, 1) translateY(0);
+            transform: scale(1, 1) translateY(0);
+        }
+
+        10% {
+            -webkit-transform: scale(var(--fa-bounce-start-scale-x, 1.1), var(--fa-bounce-start-scale-y, 0.9)) translateY(0);
+            transform: scale(var(--fa-bounce-start-scale-x, 1.1), var(--fa-bounce-start-scale-y, 0.9)) translateY(0);
+        }
+
+        30% {
+            -webkit-transform: scale(var(--fa-bounce-jump-scale-x, 0.9), var(--fa-bounce-jump-scale-y, 1.1)) translateY(var(--fa-bounce-height, -0.5em));
+            transform: scale(var(--fa-bounce-jump-scale-x, 0.9), var(--fa-bounce-jump-scale-y, 1.1)) translateY(var(--fa-bounce-height, -0.5em));
+        }
+
+        50% {
+            -webkit-transform: scale(var(--fa-bounce-land-scale-x, 1.05), var(--fa-bounce-land-scale-y, 0.95)) translateY(0);
+            transform: scale(var(--fa-bounce-land-scale-x, 1.05), var(--fa-bounce-land-scale-y, 0.95)) translateY(0);
+        }
+
+        57% {
+            -webkit-transform: scale(1, 1) translateY(var(--fa-bounce-rebound, -0.125em));
+            transform: scale(1, 1) translateY(var(--fa-bounce-rebound, -0.125em));
+        }
+
+        64% {
+            -webkit-transform: scale(1, 1) translateY(0);
+            transform: scale(1, 1) translateY(0);
+        }
+
+        100% {
+            -webkit-transform: scale(1, 1) translateY(0);
+            transform: scale(1, 1) translateY(0);
+        }
+    }
+
+    @keyframes fa-bounce {
+        0% {
+            -webkit-transform: scale(1, 1) translateY(0);
+            transform: scale(1, 1) translateY(0);
+        }
+
+        10% {
+            -webkit-transform: scale(var(--fa-bounce-start-scale-x, 1.1), var(--fa-bounce-start-scale-y, 0.9)) translateY(0);
+            transform: scale(var(--fa-bounce-start-scale-x, 1.1), var(--fa-bounce-start-scale-y, 0.9)) translateY(0);
+        }
+
+        30% {
+            -webkit-transform: scale(var(--fa-bounce-jump-scale-x, 0.9), var(--fa-bounce-jump-scale-y, 1.1)) translateY(var(--fa-bounce-height, -0.5em));
+            transform: scale(var(--fa-bounce-jump-scale-x, 0.9), var(--fa-bounce-jump-scale-y, 1.1)) translateY(var(--fa-bounce-height, -0.5em));
+        }
+
+        50% {
+            -webkit-transform: scale(var(--fa-bounce-land-scale-x, 1.05), var(--fa-bounce-land-scale-y, 0.95)) translateY(0);
+            transform: scale(var(--fa-bounce-land-scale-x, 1.05), var(--fa-bounce-land-scale-y, 0.95)) translateY(0);
+        }
+
+        57% {
+            -webkit-transform: scale(1, 1) translateY(var(--fa-bounce-rebound, -0.125em));
+            transform: scale(1, 1) translateY(var(--fa-bounce-rebound, -0.125em));
+        }
+
+        64% {
+            -webkit-transform: scale(1, 1) translateY(0);
+            transform: scale(1, 1) translateY(0);
+        }
+
+        100% {
+            -webkit-transform: scale(1, 1) translateY(0);
+            transform: scale(1, 1) translateY(0);
+        }
+    }
+
+    @-webkit-keyframes fa-fade {
+        50% {
+            opacity: var(--fa-fade-opacity, 0.4);
+        }
+    }
+
+    @keyframes fa-fade {
+        50% {
+            opacity: var(--fa-fade-opacity, 0.4);
+        }
+    }
+
+    @-webkit-keyframes fa-beat-fade {
+        0%,
+        100% {
+            opacity: var(--fa-beat-fade-opacity, 0.4);
+            -webkit-transform: scale(1);
+            transform: scale(1);
+        }
+
+        50% {
+            opacity: 1;
+            -webkit-transform: scale(var(--fa-beat-fade-scale, 1.125));
+            transform: scale(var(--fa-beat-fade-scale, 1.125));
+        }
+    }
+
+    @keyframes fa-beat-fade {
+        0%,
+        100% {
+            opacity: var(--fa-beat-fade-opacity, 0.4);
+            -webkit-transform: scale(1);
+            transform: scale(1);
+        }
+
+        50% {
+            opacity: 1;
+            -webkit-transform: scale(var(--fa-beat-fade-scale, 1.125));
+            transform: scale(var(--fa-beat-fade-scale, 1.125));
+        }
+    }
+
+    @-webkit-keyframes fa-flip {
+        50% {
+            -webkit-transform: rotate3d(var(--fa-flip-x, 0), var(--fa-flip-y, 1), var(--fa-flip-z, 0), var(--fa-flip-angle, -180deg));
+            transform: rotate3d(var(--fa-flip-x, 0), var(--fa-flip-y, 1), var(--fa-flip-z, 0), var(--fa-flip-angle, -180deg));
+        }
+    }
+
+    @keyframes fa-flip {
+        50% {
+            -webkit-transform: rotate3d(var(--fa-flip-x, 0), var(--fa-flip-y, 1), var(--fa-flip-z, 0), var(--fa-flip-angle, -180deg));
+            transform: rotate3d(var(--fa-flip-x, 0), var(--fa-flip-y, 1), var(--fa-flip-z, 0), var(--fa-flip-angle, -180deg));
+        }
+    }
+
+    @-webkit-keyframes fa-shake {
+        0% {
+            -webkit-transform: rotate(-15deg);
+            transform: rotate(-15deg);
+        }
+
+        4% {
+            -webkit-transform: rotate(15deg);
+            transform: rotate(15deg);
+        }
+
+        8%,
+        24% {
+            -webkit-transform: rotate(-18deg);
+            transform: rotate(-18deg);
+        }
+
+        12%,
+        28% {
+            -webkit-transform: rotate(18deg);
+            transform: rotate(18deg);
+        }
+
+        16% {
+            -webkit-transform: rotate(-22deg);
+            transform: rotate(-22deg);
+        }
+
+        20% {
+            -webkit-transform: rotate(22deg);
+            transform: rotate(22deg);
+        }
+
+        32% {
+            -webkit-transform: rotate(-12deg);
+            transform: rotate(-12deg);
+        }
+
+        36% {
+            -webkit-transform: rotate(12deg);
+            transform: rotate(12deg);
+        }
+
+        40%,
+        100% {
+            -webkit-transform: rotate(0deg);
+            transform: rotate(0deg);
+        }
+    }
+
+    @keyframes fa-shake {
+        0% {
+            -webkit-transform: rotate(-15deg);
+            transform: rotate(-15deg);
+        }
+
+        4% {
+            -webkit-transform: rotate(15deg);
+            transform: rotate(15deg);
+        }
+
+        8%,
+        24% {
+            -webkit-transform: rotate(-18deg);
+            transform: rotate(-18deg);
+        }
+
+        12%,
+        28% {
+            -webkit-transform: rotate(18deg);
+            transform: rotate(18deg);
+        }
+
+        16% {
+            -webkit-transform: rotate(-22deg);
+            transform: rotate(-22deg);
+        }
+
+        20% {
+            -webkit-transform: rotate(22deg);
+            transform: rotate(22deg);
+        }
+
+        32% {
+            -webkit-transform: rotate(-12deg);
+            transform: rotate(-12deg);
+        }
+
+        36% {
+            -webkit-transform: rotate(12deg);
+            transform: rotate(12deg);
+        }
+
+        40%,
+        100% {
+            -webkit-transform: rotate(0deg);
+            transform: rotate(0deg);
+        }
+    }
+
+    @-webkit-keyframes fa-spin {
+        0% {
+            -webkit-transform: rotate(0deg);
+            transform: rotate(0deg);
+        }
+
+        100% {
+            -webkit-transform: rotate(360deg);
+            transform: rotate(360deg);
+        }
+    }
+
+    @keyframes fa-spin {
+        0% {
+            -webkit-transform: rotate(0deg);
+            transform: rotate(0deg);
+        }
+
+        100% {
+            -webkit-transform: rotate(360deg);
+            transform: rotate(360deg);
+        }
+    }
+
+    &.fa-rotate-90 {
+        -webkit-transform: rotate(90deg);
+        transform: rotate(90deg);
+    }
+
+    &.fa-rotate-180 {
+        -webkit-transform: rotate(180deg);
+        transform: rotate(180deg);
+    }
+
+    &.fa-rotate-270 {
+        -webkit-transform: rotate(270deg);
+        transform: rotate(270deg);
+    }
+
+    &.fa-flip-horizontal {
+        -webkit-transform: scale(-1, 1);
+        transform: scale(-1, 1);
+    }
+
+    &.fa-flip-vertical {
+        -webkit-transform: scale(1, -1);
+        transform: scale(1, -1);
+    }
+
+    &.fa-flip-both,
+    &.fa-flip-horizontal.fa-flip-vertical {
+        -webkit-transform: scale(-1, -1);
+        transform: scale(-1, -1);
+    }
+
+    &.fa-rotate-by {
+        -webkit-transform: rotate(var(--fa-rotate-angle, none));
+        transform: rotate(var(--fa-rotate-angle, none));
+    }
+
+    &.fa-stack {
+        display: inline-block;
+        height: 2em;
+        line-height: 2em;
+        position: relative;
+        vertical-align: middle;
+        width: 2.5em;
+    }
+
+    &.fa-stack-1x,
+    &.fa-stack-2x {
+        left: 0;
+        position: absolute;
+        text-align: center;
+        width: 100%;
+        z-index: var(--fa-stack-z-index, auto);
+    }
+
+    &.fa-stack-1x {
+        line-height: inherit;
+    }
+
+    &.fa-stack-2x {
+        font-size: 2em;
+    }
+
+    &.fa-inverse {
+        color: var(--fa-inverse, #fff);
+    }
+
+    &.sr-only,
+    &.fa-sr-only {
+        position: absolute;
+        width: 1px;
+        height: 1px;
+        padding: 0;
+        margin: -1px;
+        overflow: hidden;
+        clip: rect(0, 0, 0, 0);
+        white-space: nowrap;
+        border-width: 0;
+    }
+
+    &.sr-only-focusable:not(:focus),
+    &.fa-sr-only-focusable:not(:focus) {
+        position: absolute;
+        width: 1px;
+        height: 1px;
+        padding: 0;
+        margin: -1px;
+        overflow: hidden;
+        clip: rect(0, 0, 0, 0);
+        white-space: nowrap;
+        border-width: 0;
+    }
+}
diff --git a/src/theme/theme.base.scss b/src/theme/theme.base.scss
index a1543e5b221..6dfd9ac36b6 100644
--- a/src/theme/theme.base.scss
+++ b/src/theme/theme.base.scss
@@ -258,34 +258,6 @@ ion-footer {
     }
 }
 
-// Ionic icon.
-ion-icon {
-    position: relative;
-
-    &.icon-slash::after,
-    &.icon-backslash::after {
-        content: " ";
-        position: absolute;
-        top: 0;
-        bottom: 0;
-        left: 0;
-        right: 0;
-        background-color: var(--danger);
-        -webkit-mask: url("/assets/fonts/font-awesome/solid/slash.svg") no-repeat 50% 50%;
-        mask: url("/assets/fonts/font-awesome/solid/slash.svg") no-repeat 50% 50%;
-    }
-
-    &.icon-slash::after {
-        -webkit-transform: scale(-1, 1);
-        transform: scale(-1, 1);
-    }
-
-    &.fa-fw {
-        text-align: center;
-        width: 1.25em;
-    }
-}
-
 // Buttons.
 ion-button,
 ion-fab-button,
diff --git a/src/theme/theme.scss b/src/theme/theme.scss
index 8ef6caa86e7..34177698918 100644
--- a/src/theme/theme.scss
+++ b/src/theme/theme.scss
@@ -25,6 +25,7 @@
 @import "components/format-text.scss";
 @import "components/rubrics.scss";
 @import "components/mod-label.scss";
+@import "components/ion-icon.scss";
 @import "../core/components/error-info/error-info.scss";
 @import "components/videojs.scss";