diff --git a/content/patterns/setup.md b/content/patterns/setup.md
index ed3021e..6323911 100644
--- a/content/patterns/setup.md
+++ b/content/patterns/setup.md
@@ -53,7 +53,7 @@ theme = "cupper"
 ```
 
 {{% figure caption="Cupper's Docs, with `short_name` displayed, available from the homescreen of a Samsung/Android phone." %}}
-![Teacup Cupper app icon with Cupper Docs written underneath](/images/samsung_homescreen.png)
+![Teacup Cupper app icon with Cupper Docs written underneath](/images/samsung_homescreen.jpg)
 {{% /figure %}}
 
 {{% note %}}
diff --git a/docs/css/styles.css b/docs/css/styles.css
index 7e4f50a..58d7238 100644
--- a/docs/css/styles.css
+++ b/docs/css/styles.css
@@ -842,6 +842,9 @@ h1 svg {
     .intro {
         text-align: center;
     }
+    .intro-and-nav {
+        border-right: none;
+    }
     .intro-and-nav > div {
         padding: 1.5rem;
     }
diff --git a/docs/images/samsung_homescreen.jpg b/docs/images/samsung_homescreen.jpg
new file mode 100644
index 0000000..26b2de9
Binary files /dev/null and b/docs/images/samsung_homescreen.jpg differ
diff --git a/docs/images/samsung_homescreen.png b/docs/images/samsung_homescreen.png
deleted file mode 100644
index fa30515..0000000
Binary files a/docs/images/samsung_homescreen.png and /dev/null differ
diff --git a/docs/patterns/setup/index.html b/docs/patterns/setup/index.html
index ca910e1..5248f1d 100644
--- a/docs/patterns/setup/index.html
+++ b/docs/patterns/setup/index.html
@@ -485,7 +485,7 @@ theme = "cupper"
 
 
 <figure role="group" aria-describedby="caption-523eedbc53c852c09a6b33234e5e3786">
-  <p><img src="https://thepaciellogroup.github.io/cupper/images/samsung_homescreen.png" alt="Teacup Cupper app icon with Cupper Docs written underneath" /></p>
+  <p><img src="https://thepaciellogroup.github.io/cupper/images/samsung_homescreen.jpg" alt="Teacup Cupper app icon with Cupper Docs written underneath" /></p>
 
   <figcaption id="caption-523eedbc53c852c09a6b33234e5e3786">
     Cupper&rsquo;s Docs, with <code>short_name</code> displayed, available from the homescreen of a Samsung/Android phone.
diff --git a/docs/print-version/index.html b/docs/print-version/index.html
index 2e281a6..23c6d91 100644
--- a/docs/print-version/index.html
+++ b/docs/print-version/index.html
@@ -524,7 +524,7 @@ theme = "cupper"
 
 
 <figure role="group" aria-describedby="caption-523eedbc53c852c09a6b33234e5e3786">
-  <p><img src="https://thepaciellogroup.github.io/cupper/images/samsung_homescreen.png" alt="Teacup Cupper app icon with Cupper Docs written underneath" /></p>
+  <p><img src="https://thepaciellogroup.github.io/cupper/images/samsung_homescreen.jpg" alt="Teacup Cupper app icon with Cupper Docs written underneath" /></p>
 
   <figcaption id="caption-523eedbc53c852c09a6b33234e5e3786">
     Cupper&rsquo;s Docs, with <code>short_name</code> displayed, available from the homescreen of a Samsung/Android phone.
diff --git a/docs/service-worker.js b/docs/service-worker.js
index 8a39ecb..236eaa3 100644
--- a/docs/service-worker.js
+++ b/docs/service-worker.js
@@ -37,7 +37,7 @@
 /* eslint-disable indent, no-unused-vars, no-multiple-empty-lines, max-nested-callbacks, space-before-function-paren, quotes, comma-spacing */
 'use strict';
 
-var precacheConfig = [["404.html","27161e9319153913027bd7dfea90de2e"],["browserconfig.xml","67c3113b1574fecc6015d56d774e1d38"],["categories/index.xml","b7219ca118bac884b575439e179569e2"],["css/fonts/miriamlibre-bold.woff","96496f6f06535d25b3bcba876917ca35"],["css/fonts/miriamlibre-bold.woff2","668defa44d9a74dd709ce0c826a5eb11"],["css/images/arrow_effect.svg","1434d178461f70c16b77acb4bdbc51e3"],["css/images/icon-tick.svg","35d4d4728ea80d254508b2bca4109d70"],["css/images/stripe.svg","fa3f32a026b6a1bb04ee98d963432e15"],["css/prism.css","004029c8c70ed2bbaa5d9debcf14f8c7"],["css/styles.css","08a5607486d5e1a5bc09aeecbea47ec2"],["images/android-icon-144x144.png","43e1f47f182b13d0dee15f510213e928"],["images/android-icon-192x192.png","4c07782e52e0ab714074e6d3d69dc3ec"],["images/android-icon-36x36.png","3b2cd8c925a66bf84c89b68bb30e5f62"],["images/android-icon-48x48.png","45dc386eea1d8a46216a8b6de9b156c6"],["images/android-icon-512x512.png","42d6b28cc7eb41810a5392c81368340a"],["images/android-icon-72x72.png","b04c64637efed2b04fa900ddfcbfe75d"],["images/android-icon-96x96.png","bd9c126a4d6baf7ce442122ce0e89e11"],["images/apple-icon-precomposed.png","478755b1c3e0d2c8aea975033cff9ac8"],["images/apple-icon.png","478755b1c3e0d2c8aea975033cff9ac8"],["images/apple-touch-icon-114x114.png","95804b2192b0cea406b54cb31345c47d"],["images/apple-touch-icon-120x120.png","b5da0625c9e876bdf9768875f7dd9cca"],["images/apple-touch-icon-144x144.png","976151c9ecd72311dc6024917292209d"],["images/apple-touch-icon-152x152.png","8bd6a2e592c1c8463b5205ba8436227e"],["images/apple-touch-icon-180x180.png","56a93f4271dea903196794095e9f9ccc"],["images/apple-touch-icon-57x57.png","977183ab3bfb98da8d79e025f1cb4946"],["images/apple-touch-icon-60x60.png","55e9e05103a9b472a52f4c572a73b2b2"],["images/apple-touch-icon-72x72.png","1ef87a2887baab846f2501beb27445ee"],["images/apple-touch-icon-76x76.png","769826cd7526df4db7f4ba1a820158bd"],["images/bad_design_system.png","9c0e87a34e7d842b0e2831dc947249aa"],["images/browser-chrome-android.svg","3100b2a9c5f0e34982c717fc2aa46d73"],["images/browser-chrome.svg","fa39b4be6727525330e928f582fbe80a"],["images/browser-edge.svg","9e8265ab8f6a701587a4271dd3aa6a73"],["images/browser-firefox-android.svg","452df7b9e83c70a07e8e03b4e8dab9c4"],["images/browser-firefox.svg","d3093eda664be3d0cc6d791e1386420f"],["images/browser-ie.svg","13e192cf2b3fe17e7049a49b7d085caa"],["images/browser-opera.svg","95d65630c9f7deef6a3098af8f5baf9f"],["images/browser-safari-ios.svg","f729e629ec998ec40d313495d7257741"],["images/browser-safari.svg","523ee9491f5a937b8975f4d23aa77f62"],["images/favicon-16x16.png","7a99c20d6c00babddd26d03607b8721d"],["images/favicon-32x32.png","129881474a1bf130027bff7a1e89febd"],["images/favicon-96x96.png","bd9c126a4d6baf7ce442122ce0e89e11"],["images/favicon.ico","81c46feedbfcc6c6dc9495e4fd5adfad"],["images/icon-info.svg","53a6c555ce41f818556c71ab0dfc533b"],["images/icon-tag.svg","f067bbbc072941b2a0335679300bfc6c"],["images/icon-warning.svg","2a4322abbee9aed694fadb50e98a1f61"],["images/logo.svg","41f1c1780c2c5efa41d64359dbd651bb"],["images/ms-icon-144x144.png","43e1f47f182b13d0dee15f510213e928"],["images/ms-icon-150x150.png","e73370837ab9060772a18d62aaacd0f0"],["images/ms-icon-310x310.png","8a7143516b929702e3309bb537a99c5c"],["images/ms-icon-70x70.png","d7c6e7368733d53b5f979546d5aa4fe9"],["images/open_in_desktop.png","e899d6679b011aa7b0e783683d90d99b"],["images/samsung_homescreen.png","5ef40e64a18f966ce5c9084a024256db"],["images/serve_from_docs.png","15ae9eac3737a21593ebe00a9312bf9e"],["index.html","1dd18efb1e872a6fa04f0e24d69f51e2"],["index.xml","3607b9dfcc8b4de39e9b24d84e079e0b"],["js/dom-scripts.js","d1226c17a56c156113ee538031a0b6bf"],["js/prism.js","0c1fb8d3a69ee7c91dbf0f361ded7763"],["js/service-worker-registration.js","d60f01dc1393cbaaf4f7435339074d5e"],["manifest.json","381e6af4fc2816f9a137f1ef30c10ebd"],["patterns/coding/code-blocks/index.html","30e4e4cafccfc068b28f369b952225a2"],["patterns/coding/color-palettes/index.html","02d6a136bdda617ccea10bfdce73e9de"],["patterns/coding/command-line/index.html","be235322e7cce7dd73ba38838c505254"],["patterns/coding/demo-embedding/index.html","967a28d183c34de6e49bd8cf397db32e"],["patterns/coding/file-trees/index.html","a52c1705bf6e3a45721f5ca15b5d6ccc"],["patterns/coding/index.html","326e8de49357cb8f3f4e8f7ad3989746"],["patterns/coding/index.xml","bb560877223964ac60e0b9a1248a6d35"],["patterns/coding/tested/index.html","84049828961d923b6d5028bff54e97db"],["patterns/coding/writing-inline-demos/index.html","30d4f9fb64d039c6160ea41cf6d99699"],["patterns/index.html","fbc29e79051ca0e88d82cfb9f9802dbd"],["patterns/index.xml","d5858fce0b97eabfdd83c867eed1375b"],["patterns/installation/index.html","3c1c25eb7c5ec2f6a4192dc6c90188de"],["patterns/media/including-images/index.html","99d1e7c2edda76aaa1b81f5766f388a6"],["patterns/media/including-videos/index.html","07b9627cdd045d289489694873e8ce6c"],["patterns/media/index.html","d24c9248c4d23ea88c9be4f501a7ca9a"],["patterns/media/index.xml","71e2766a93623611b6b4c31ae4023eb8"],["patterns/printing/index.html","0ff01ea9a5f2b992d294923617a955fc"],["patterns/serving/index.html","7f8059530d8c617a07e5e4f1c596bc00"],["patterns/setup/index.html","719850d04fd774b0d912599c23ead695"],["patterns/updating/index.html","f0db2d7b9dadf803dfd76abe57a8a41b"],["patterns/writing/expandable-sections/index.html","14c6973c2b21d97bf8d5c88a1d533af3"],["patterns/writing/index.html","aee1e81de99522785f3b10129e8816b7"],["patterns/writing/index.xml","4cddff005a675e89bf2677d91ffc3723"],["patterns/writing/markdown-and-metadata/index.html","cf0648192aac416bc155d940d31717fc"],["patterns/writing/notes-and-warnings/index.html","04851100417c568a94f18d728e6355a6"],["patterns/writing/project-structure/index.html","5012abea3a86c86704187bade40509f7"],["patterns/writing/references/index.html","88a0d590dc87da54bef9ac8288b01c9d"],["patterns/writing/snippets/index.html","184a9cefcd8f4db3b1ee56a613dc3cab"],["patterns/writing/tables-of-contents/index.html","3108ad93ed97288fcbf4c32d8d76cee3"],["print-version/index.html","979bcc562edd464e9ca84a83627ddd96"],["sitemap.xml","3eb68d8dc7012b3f5e73b45320d81868"],["tags/index.xml","f9dcce911a40c37aa7dc4ffd4e623a29"],["tags/markdown/index.html","ff8cdddef3117c8a1156e0d9e7a8995a"],["tags/markdown/index.xml","7e7c99e47c7ba81c9f36493e87925bc4"],["tags/metadata/index.html","d9a8d80f07e4fa6c8f1100bae79e7537"],["tags/metadata/index.xml","39f48a6b0cc323e2c1f24dacb7a11442"]];
+var precacheConfig = [["404.html","27161e9319153913027bd7dfea90de2e"],["browserconfig.xml","67c3113b1574fecc6015d56d774e1d38"],["categories/index.xml","b7219ca118bac884b575439e179569e2"],["css/fonts/miriamlibre-bold.woff","96496f6f06535d25b3bcba876917ca35"],["css/fonts/miriamlibre-bold.woff2","668defa44d9a74dd709ce0c826a5eb11"],["css/images/arrow_effect.svg","1434d178461f70c16b77acb4bdbc51e3"],["css/images/icon-tick.svg","35d4d4728ea80d254508b2bca4109d70"],["css/images/stripe.svg","fa3f32a026b6a1bb04ee98d963432e15"],["css/prism.css","004029c8c70ed2bbaa5d9debcf14f8c7"],["css/styles.css","5045782434e99730a2fa795b0b4af63b"],["images/android-icon-144x144.png","43e1f47f182b13d0dee15f510213e928"],["images/android-icon-192x192.png","4c07782e52e0ab714074e6d3d69dc3ec"],["images/android-icon-36x36.png","3b2cd8c925a66bf84c89b68bb30e5f62"],["images/android-icon-48x48.png","45dc386eea1d8a46216a8b6de9b156c6"],["images/android-icon-512x512.png","42d6b28cc7eb41810a5392c81368340a"],["images/android-icon-72x72.png","b04c64637efed2b04fa900ddfcbfe75d"],["images/android-icon-96x96.png","bd9c126a4d6baf7ce442122ce0e89e11"],["images/apple-icon-precomposed.png","478755b1c3e0d2c8aea975033cff9ac8"],["images/apple-icon.png","478755b1c3e0d2c8aea975033cff9ac8"],["images/apple-touch-icon-114x114.png","95804b2192b0cea406b54cb31345c47d"],["images/apple-touch-icon-120x120.png","b5da0625c9e876bdf9768875f7dd9cca"],["images/apple-touch-icon-144x144.png","976151c9ecd72311dc6024917292209d"],["images/apple-touch-icon-152x152.png","8bd6a2e592c1c8463b5205ba8436227e"],["images/apple-touch-icon-180x180.png","56a93f4271dea903196794095e9f9ccc"],["images/apple-touch-icon-57x57.png","977183ab3bfb98da8d79e025f1cb4946"],["images/apple-touch-icon-60x60.png","55e9e05103a9b472a52f4c572a73b2b2"],["images/apple-touch-icon-72x72.png","1ef87a2887baab846f2501beb27445ee"],["images/apple-touch-icon-76x76.png","769826cd7526df4db7f4ba1a820158bd"],["images/bad_design_system.png","9c0e87a34e7d842b0e2831dc947249aa"],["images/browser-chrome-android.svg","3100b2a9c5f0e34982c717fc2aa46d73"],["images/browser-chrome.svg","fa39b4be6727525330e928f582fbe80a"],["images/browser-edge.svg","9e8265ab8f6a701587a4271dd3aa6a73"],["images/browser-firefox-android.svg","452df7b9e83c70a07e8e03b4e8dab9c4"],["images/browser-firefox.svg","d3093eda664be3d0cc6d791e1386420f"],["images/browser-ie.svg","13e192cf2b3fe17e7049a49b7d085caa"],["images/browser-opera.svg","95d65630c9f7deef6a3098af8f5baf9f"],["images/browser-safari-ios.svg","f729e629ec998ec40d313495d7257741"],["images/browser-safari.svg","523ee9491f5a937b8975f4d23aa77f62"],["images/favicon-16x16.png","7a99c20d6c00babddd26d03607b8721d"],["images/favicon-32x32.png","129881474a1bf130027bff7a1e89febd"],["images/favicon-96x96.png","bd9c126a4d6baf7ce442122ce0e89e11"],["images/favicon.ico","81c46feedbfcc6c6dc9495e4fd5adfad"],["images/icon-info.svg","53a6c555ce41f818556c71ab0dfc533b"],["images/icon-tag.svg","f067bbbc072941b2a0335679300bfc6c"],["images/icon-warning.svg","2a4322abbee9aed694fadb50e98a1f61"],["images/logo.svg","41f1c1780c2c5efa41d64359dbd651bb"],["images/ms-icon-144x144.png","43e1f47f182b13d0dee15f510213e928"],["images/ms-icon-150x150.png","e73370837ab9060772a18d62aaacd0f0"],["images/ms-icon-310x310.png","8a7143516b929702e3309bb537a99c5c"],["images/ms-icon-70x70.png","d7c6e7368733d53b5f979546d5aa4fe9"],["images/open_in_desktop.png","e899d6679b011aa7b0e783683d90d99b"],["images/samsung_homescreen.jpg","4462178424f5ce79b5757748ba5f1ec4"],["images/serve_from_docs.png","15ae9eac3737a21593ebe00a9312bf9e"],["index.html","1dd18efb1e872a6fa04f0e24d69f51e2"],["index.xml","3607b9dfcc8b4de39e9b24d84e079e0b"],["js/dom-scripts.js","d1226c17a56c156113ee538031a0b6bf"],["js/prism.js","0c1fb8d3a69ee7c91dbf0f361ded7763"],["js/service-worker-registration.js","d60f01dc1393cbaaf4f7435339074d5e"],["manifest.json","381e6af4fc2816f9a137f1ef30c10ebd"],["patterns/coding/code-blocks/index.html","30e4e4cafccfc068b28f369b952225a2"],["patterns/coding/color-palettes/index.html","02d6a136bdda617ccea10bfdce73e9de"],["patterns/coding/command-line/index.html","be235322e7cce7dd73ba38838c505254"],["patterns/coding/demo-embedding/index.html","967a28d183c34de6e49bd8cf397db32e"],["patterns/coding/file-trees/index.html","a52c1705bf6e3a45721f5ca15b5d6ccc"],["patterns/coding/index.html","326e8de49357cb8f3f4e8f7ad3989746"],["patterns/coding/index.xml","bb560877223964ac60e0b9a1248a6d35"],["patterns/coding/tested/index.html","84049828961d923b6d5028bff54e97db"],["patterns/coding/writing-inline-demos/index.html","30d4f9fb64d039c6160ea41cf6d99699"],["patterns/index.html","fbc29e79051ca0e88d82cfb9f9802dbd"],["patterns/index.xml","d5858fce0b97eabfdd83c867eed1375b"],["patterns/installation/index.html","3c1c25eb7c5ec2f6a4192dc6c90188de"],["patterns/media/including-images/index.html","99d1e7c2edda76aaa1b81f5766f388a6"],["patterns/media/including-videos/index.html","07b9627cdd045d289489694873e8ce6c"],["patterns/media/index.html","d24c9248c4d23ea88c9be4f501a7ca9a"],["patterns/media/index.xml","71e2766a93623611b6b4c31ae4023eb8"],["patterns/printing/index.html","0ff01ea9a5f2b992d294923617a955fc"],["patterns/serving/index.html","7f8059530d8c617a07e5e4f1c596bc00"],["patterns/setup/index.html","c19f005ae018d13489d1a80b5b2f8420"],["patterns/updating/index.html","f0db2d7b9dadf803dfd76abe57a8a41b"],["patterns/writing/expandable-sections/index.html","14c6973c2b21d97bf8d5c88a1d533af3"],["patterns/writing/index.html","aee1e81de99522785f3b10129e8816b7"],["patterns/writing/index.xml","4cddff005a675e89bf2677d91ffc3723"],["patterns/writing/markdown-and-metadata/index.html","cf0648192aac416bc155d940d31717fc"],["patterns/writing/notes-and-warnings/index.html","04851100417c568a94f18d728e6355a6"],["patterns/writing/project-structure/index.html","5012abea3a86c86704187bade40509f7"],["patterns/writing/references/index.html","88a0d590dc87da54bef9ac8288b01c9d"],["patterns/writing/snippets/index.html","184a9cefcd8f4db3b1ee56a613dc3cab"],["patterns/writing/tables-of-contents/index.html","3108ad93ed97288fcbf4c32d8d76cee3"],["print-version/index.html","e773f9a83feb1461c206dd6e738b446f"],["sitemap.xml","3eb68d8dc7012b3f5e73b45320d81868"],["tags/index.xml","f9dcce911a40c37aa7dc4ffd4e623a29"],["tags/markdown/index.html","ff8cdddef3117c8a1156e0d9e7a8995a"],["tags/markdown/index.xml","7e7c99e47c7ba81c9f36493e87925bc4"],["tags/metadata/index.html","d9a8d80f07e4fa6c8f1100bae79e7537"],["tags/metadata/index.xml","39f48a6b0cc323e2c1f24dacb7a11442"]];
 var cacheName = 'sw-precache-v3-sw-precache-' + (self.registration ? self.registration.scope : '');
 
 
diff --git a/themes/cupper/static/images/samsung_homescreen.jpg b/themes/cupper/static/images/samsung_homescreen.jpg
new file mode 100644
index 0000000..26b2de9
Binary files /dev/null and b/themes/cupper/static/images/samsung_homescreen.jpg differ
diff --git a/themes/cupper/static/images/samsung_homescreen.png b/themes/cupper/static/images/samsung_homescreen.png
deleted file mode 100644
index fa30515..0000000
Binary files a/themes/cupper/static/images/samsung_homescreen.png and /dev/null differ