diff --git a/guide/src/format/configuration/renderers.md b/guide/src/format/configuration/renderers.md
index 04d9912b95..5efede6606 100644
--- a/guide/src/format/configuration/renderers.md
+++ b/guide/src/format/configuration/renderers.md
@@ -123,7 +123,7 @@ The following configuration options are available:
   [`prefers-color-scheme`](https://developer.mozilla.org/en-US/docs/Web/CSS/@media/prefers-color-scheme)
   CSS media query. Defaults to `navy`.
 - **smart-punctuation:** Converts quotes to curly quotes, `...` to `…`, `--` to en-dash, and `---` to em-dash.
-  See [Smart Punctuation].
+  See [Smart Punctuation](../markdown.md#smart-punctuation).
   Defaults to `false`.
 - **curly-quotes:** Deprecated alias for `smart-punctuation`.
 - **mathjax-support:** Adds support for [MathJax](../mathjax.md). Defaults to
diff --git a/guide/src/guide/installation.md b/guide/src/guide/installation.md
index 3fe9e12a9b..173b078cd7 100644
--- a/guide/src/guide/installation.md
+++ b/guide/src/guide/installation.md
@@ -30,6 +30,9 @@ cargo install mdbook
 
 This will automatically download mdBook from [crates.io], build it, and install it in Cargo's global binary directory (`~/.cargo/bin/` by default).
 
+You can run `cargo install mdbook` again whenever you want to update to a new version.
+That command will check if there is a newer version, and re-install mdBook if a newer version is found.
+
 To uninstall, run the command `cargo uninstall mdbook`.
 
 [Rust installation page]: https://www.rust-lang.org/tools/install
@@ -47,6 +50,8 @@ cargo install --git https://github.com/rust-lang/mdBook.git mdbook
 
 Again, make sure to add the Cargo bin directory to your `PATH`.
 
+## Modifying and contributing
+
 If you are interested in making modifications to mdBook itself, check out the [Contributing Guide] for more information.
 
 [Contributing Guide]: https://github.com/rust-lang/mdBook/blob/master/CONTRIBUTING.md
diff --git a/src/theme/book.js b/src/theme/book.js
index aa12e7eccf..18b8f3a4d9 100644
--- a/src/theme/book.js
+++ b/src/theme/book.js
@@ -225,7 +225,7 @@ function playground_text(playground, hidden = true) {
                 }
 
                 var clipButton = document.createElement('button');
-                clipButton.className = 'fa fa-copy clip-button';
+                clipButton.className = 'clip-button';
                 clipButton.title = 'Copy to clipboard';
                 clipButton.setAttribute('aria-label', clipButton.title);
                 clipButton.innerHTML = '<i class=\"tooltiptext\"></i>';
@@ -258,7 +258,7 @@ function playground_text(playground, hidden = true) {
 
         if (window.playground_copyable) {
             var copyCodeClipboardButton = document.createElement('button');
-            copyCodeClipboardButton.className = 'fa fa-copy clip-button';
+            copyCodeClipboardButton.className = 'clip-button';
             copyCodeClipboardButton.innerHTML = '<i class="tooltiptext"></i>';
             copyCodeClipboardButton.title = 'Copy to clipboard';
             copyCodeClipboardButton.setAttribute('aria-label', copyCodeClipboardButton.title);
@@ -597,12 +597,12 @@ function playground_text(playground, hidden = true) {
 
     function hideTooltip(elem) {
         elem.firstChild.innerText = "";
-        elem.className = 'fa fa-copy clip-button';
+        elem.className = 'clip-button';
     }
 
     function showTooltip(elem, msg) {
         elem.firstChild.innerText = msg;
-        elem.className = 'fa fa-copy tooltipped';
+        elem.className = 'clip-button tooltipped';
     }
 
     var clipboardSnippets = new ClipboardJS('.clip-button', {
diff --git a/src/theme/css/chrome.css b/src/theme/css/chrome.css
index 83b7969bce..7a2b343222 100644
--- a/src/theme/css/chrome.css
+++ b/src/theme/css/chrome.css
@@ -250,8 +250,8 @@ pre > .buttons i {
 pre > .buttons button {
     cursor: inherit;
     margin: 0px 5px;
-    padding: 3px 5px;
-    font-size: 14px;
+    padding: 4px 4px 3px 5px;
+    font-size: 23px;
 
     border-style: solid;
     border-width: 1px;
@@ -262,6 +262,27 @@ pre > .buttons button {
     transition-property: color,border-color,background-color;
     color: var(--icons);
 }
+
+pre > .buttons button.clip-button {
+    padding: 2px 4px 0px 6px;
+}
+pre > .buttons button.clip-button::before {
+    /* clipboard image from octicons (https://github.com/primer/octicons/tree/v2.0.0) MIT license
+     */
+    content: url('data:image/svg+xml,<svg width="21" height="20" viewBox="0 0 24 25" \
+xmlns="http://www.w3.org/2000/svg" aria-label="Copy to clipboard">\
+<path d="M18 20h2v3c0 1-1 2-2 2H2c-.998 0-2-1-2-2V5c0-.911.755-1.667 1.667-1.667h5A3.323 3.323 0 \
+0110 0a3.323 3.323 0 013.333 3.333h5C19.245 3.333 20 4.09 20 5v8.333h-2V9H2v14h16v-3zM3 \
+7h14c0-.911-.793-1.667-1.75-1.667H13.5c-.957 0-1.75-.755-1.75-1.666C11.75 2.755 10.957 2 10 \
+2s-1.75.755-1.75 1.667c0 .911-.793 1.666-1.75 1.666H4.75C3.793 5.333 3 6.09 3 7z"/>\
+<path d="M4 19h6v2H4zM12 11H4v2h8zM4 17h4v-2H4zM15 15v-3l-4.5 4.5L15 21v-3l8.027-.032L23 15z"/>\
+</svg>');
+    filter: var(--copy-button-filter);
+}
+pre > .buttons button.clip-button:hover::before {
+    filter: var(--copy-button-filter-hover);
+}
+
 @media (pointer: coarse) {
     pre > .buttons button {
         /* On mobile, make it easier to tap buttons. */
diff --git a/src/theme/css/variables.css b/src/theme/css/variables.css
index 0da55e8c9a..afa974eb8d 100644
--- a/src/theme/css/variables.css
+++ b/src/theme/css/variables.css
@@ -56,6 +56,11 @@
     --search-mark-bg: #e3b171;
 
     --color-scheme: dark;
+
+    /* Same as `--icons` */
+    --copy-button-filter: invert(45%) sepia(6%) saturate(621%) hue-rotate(198deg) brightness(99%) contrast(85%);
+    /* Same as `--sidebar-active` */
+    --copy-button-filter-hover: invert(68%) sepia(55%) saturate(531%) hue-rotate(341deg) brightness(104%) contrast(101%);
 }
 
 .coal {
@@ -100,6 +105,11 @@
     --search-mark-bg: #355c7d;
 
     --color-scheme: dark;
+
+    /* Same as `--icons` */
+    --copy-button-filter: invert(26%) sepia(8%) saturate(575%) hue-rotate(169deg) brightness(87%) contrast(82%);
+    /* Same as `--sidebar-active` */
+    --copy-button-filter-hover: invert(36%) sepia(70%) saturate(503%) hue-rotate(167deg) brightness(98%) contrast(89%);
 }
 
 .light {
@@ -144,6 +154,11 @@
     --search-mark-bg: #a2cff5;
 
     --color-scheme: light;
+
+    /* Same as `--icons` */
+    --copy-button-filter: invert(45.49%);
+    /* Same as `--sidebar-active` */
+    --copy-button-filter-hover: invert(14%) sepia(93%) saturate(4250%) hue-rotate(243deg) brightness(99%) contrast(130%);
 }
 
 .navy {
@@ -188,6 +203,11 @@
     --search-mark-bg: #a2cff5;
 
     --color-scheme: dark;
+
+    /* Same as `--icons` */
+    --copy-button-filter: invert(51%) sepia(10%) saturate(393%) hue-rotate(198deg) brightness(86%) contrast(87%);
+    /* Same as `--sidebar-active` */
+    --copy-button-filter-hover: invert(46%) sepia(20%) saturate(1537%) hue-rotate(156deg) brightness(85%) contrast(90%);
 }
 
 .rust {
@@ -231,7 +251,10 @@
     --searchresults-li-bg: #dec2a2;
     --search-mark-bg: #e69f67;
 
-    --color-scheme: light;
+    /* Same as `--icons` */
+    --copy-button-filter: invert(51%) sepia(10%) saturate(393%) hue-rotate(198deg) brightness(86%) contrast(87%);
+    /* Same as `--sidebar-active` */
+    --copy-button-filter-hover: invert(77%) sepia(16%) saturate(1798%) hue-rotate(328deg) brightness(98%) contrast(83%);
 }
 
 @media (prefers-color-scheme: dark) {
@@ -275,5 +298,10 @@
         --searchresults-border-color: #98a3ad;
         --searchresults-li-bg: #2b2b2f;
         --search-mark-bg: #355c7d;
+
+        /* Same as `--icons` */
+        --copy-button-filter: invert(26%) sepia(8%) saturate(575%) hue-rotate(169deg) brightness(87%) contrast(82%);
+        /* Same as `--sidebar-active` */
+        --copy-button-filter-hover: invert(36%) sepia(70%) saturate(503%) hue-rotate(167deg) brightness(98%) contrast(89%);
     }
 }