From ffda52a7cfd9c28054b724eea736cfa720273e50 Mon Sep 17 00:00:00 2001
From: Lea Verou <lea@verou.me>
Date: Fri, 7 Feb 2025 23:03:34 -0500
Subject: [PATCH] Theme remixing: Dynamic code snippets (#729)

---
 .prettierignore                              |  1 +
 docs/_includes/import-stylesheet-code.md.njk |  2 +-
 docs/_layouts/theme.njk                      | 26 +++-----------
 docs/assets/scripts/prism.js                 |  8 +++++
 docs/assets/scripts/remix.js                 | 37 ++++++++++++++++++++
 docs/docs/themes/demo.njk                    | 37 ++++++++++++--------
 docs/docs/themes/remix.js                    | 29 +++++++++++++--
 7 files changed, 101 insertions(+), 39 deletions(-)
 create mode 100644 docs/assets/scripts/prism.js
 create mode 100644 docs/assets/scripts/remix.js

diff --git a/.prettierignore b/.prettierignore
index fc6f3e81c..22974a0ad 100644
--- a/.prettierignore
+++ b/.prettierignore
@@ -13,3 +13,4 @@ package-lock.json
 tsconfig.json
 cdn
 _site
+docs/assets/scripts/prism.js
diff --git a/docs/_includes/import-stylesheet-code.md.njk b/docs/_includes/import-stylesheet-code.md.njk
index c0fdeedcb..d7f538b5b 100644
--- a/docs/_includes/import-stylesheet-code.md.njk
+++ b/docs/_includes/import-stylesheet-code.md.njk
@@ -1,4 +1,4 @@
-<wa-tab-group>
+<wa-tab-group class="import-stylesheet-code">
 <wa-tab panel="html">In HTML</wa-tab>
 <wa-tab panel="css">In CSS</wa-tab>
 <wa-tab-panel name="html">
diff --git a/docs/_layouts/theme.njk b/docs/_layouts/theme.njk
index 6dbfd782e..97c737f41 100644
--- a/docs/_layouts/theme.njk
+++ b/docs/_layouts/theme.njk
@@ -34,9 +34,9 @@ wa_data.palettes = {
 <iframe src='{{ page.url }}demo.html' id="demo"></iframe>
 
 <wa-details id="mix_and_match" class="wa-gap-m" >
-  <h4 slot="summary" data-no-anchor data-no-outline>
+  <h4 slot="summary" data-no-anchor data-no-outline id="remix">
     <wa-icon name="arrows-rotate"></wa-icon>
-    Remix
+    Remix this theme
     <wa-icon id="what-is-remixing" href="#remixing" name="circle-question" slot="suffix" variant="regular"></wa-icon>
     <wa-tooltip for="what-is-remixing">Customize this theme by changing its colors and/or remixing it with design elements from other themes!</wa-tooltip>
   </h4>
@@ -132,31 +132,15 @@ wa_data.palettes = {
 {% endblock %}
 
 {% block afterContent %}
-{% markdown %}
-## How to use this theme
 
+<h2 id="usage">How to use this theme</h2>
+
+{% markdown %}
 You can import this theme from the Web Awesome CDN.
 
 {% set stylesheet = 'styles/themes/' + page.fileSlug + '.css' %}
 {% include 'import-stylesheet-code.md.njk' %}
 
-### Remixing { #remixing }
-
-If you want to combine the **colors** from this theme with another theme, you can import this CSS file *after* the other theme’s CSS file:
-
-{% set stylesheet = 'styles/themes/' + page.fileSlug + '/color.css' %}
-{% include 'import-stylesheet-code.md.njk' %}
-
-To use the **typography** from this theme with another theme, you can import this CSS file *after* the other theme’s CSS file:
-
-{% set stylesheet = 'styles/themes/' + page.fileSlug + '/typography.css' %}
-{% include 'import-stylesheet-code.md.njk' %}
-
-<wa-callout variant="warning">
-  <wa-icon slot="icon" name="triangle-exclamation" variant="regular"></wa-icon>
-  Please note that not all combinations will look good — once you’re mixing and matching, you’re on your own!
-</wa-callout>
-
 ## Dark mode
 
 To activate the dark color scheme of the theme on any element and its contents, apply the class `wa-dark` to it.
diff --git a/docs/assets/scripts/prism.js b/docs/assets/scripts/prism.js
new file mode 100644
index 000000000..be9653dd6
--- /dev/null
+++ b/docs/assets/scripts/prism.js
@@ -0,0 +1,8 @@
+/* PrismJS 1.29.0
+https://prismjs.com/download.html#themes=prism&languages=markup+css+clike+javascript&plugins=custom-class */
+var _self="undefined"!=typeof window?window:"undefined"!=typeof WorkerGlobalScope&&self instanceof WorkerGlobalScope?self:{},Prism=function(e){var n=/(?:^|\s)lang(?:uage)?-([\w-]+)(?=\s|$)/i,t=0,r={},a={manual:e.Prism&&e.Prism.manual,disableWorkerMessageHandler:e.Prism&&e.Prism.disableWorkerMessageHandler,util:{encode:function e(n){return n instanceof i?new i(n.type,e(n.content),n.alias):Array.isArray(n)?n.map(e):n.replace(/&/g,"&amp;").replace(/</g,"&lt;").replace(/\u00a0/g," ")},type:function(e){return Object.prototype.toString.call(e).slice(8,-1)},objId:function(e){return e.__id||Object.defineProperty(e,"__id",{value:++t}),e.__id},clone:function e(n,t){var r,i;switch(t=t||{},a.util.type(n)){case"Object":if(i=a.util.objId(n),t[i])return t[i];for(var l in r={},t[i]=r,n)n.hasOwnProperty(l)&&(r[l]=e(n[l],t));return r;case"Array":return i=a.util.objId(n),t[i]?t[i]:(r=[],t[i]=r,n.forEach((function(n,a){r[a]=e(n,t)})),r);default:return n}},getLanguage:function(e){for(;e;){var t=n.exec(e.className);if(t)return t[1].toLowerCase();e=e.parentElement}return"none"},setLanguage:function(e,t){e.className=e.className.replace(RegExp(n,"gi"),""),e.classList.add("language-"+t)},currentScript:function(){if("undefined"==typeof document)return null;if("currentScript"in document)return document.currentScript;try{throw new Error}catch(r){var e=(/at [^(\r\n]*\((.*):[^:]+:[^:]+\)$/i.exec(r.stack)||[])[1];if(e){var n=document.getElementsByTagName("script");for(var t in n)if(n[t].src==e)return n[t]}return null}},isActive:function(e,n,t){for(var r="no-"+n;e;){var a=e.classList;if(a.contains(n))return!0;if(a.contains(r))return!1;e=e.parentElement}return!!t}},languages:{plain:r,plaintext:r,text:r,txt:r,extend:function(e,n){var t=a.util.clone(a.languages[e]);for(var r in n)t[r]=n[r];return t},insertBefore:function(e,n,t,r){var i=(r=r||a.languages)[e],l={};for(var o in i)if(i.hasOwnProperty(o)){if(o==n)for(var s in t)t.hasOwnProperty(s)&&(l[s]=t[s]);t.hasOwnProperty(o)||(l[o]=i[o])}var u=r[e];return r[e]=l,a.languages.DFS(a.languages,(function(n,t){t===u&&n!=e&&(this[n]=l)})),l},DFS:function e(n,t,r,i){i=i||{};var l=a.util.objId;for(var o in n)if(n.hasOwnProperty(o)){t.call(n,o,n[o],r||o);var s=n[o],u=a.util.type(s);"Object"!==u||i[l(s)]?"Array"!==u||i[l(s)]||(i[l(s)]=!0,e(s,t,o,i)):(i[l(s)]=!0,e(s,t,null,i))}}},plugins:{},highlightAll:function(e,n){a.highlightAllUnder(document,e,n)},highlightAllUnder:function(e,n,t){var r={callback:t,container:e,selector:'code[class*="language-"], [class*="language-"] code, code[class*="lang-"], [class*="lang-"] code'};a.hooks.run("before-highlightall",r),r.elements=Array.prototype.slice.apply(r.container.querySelectorAll(r.selector)),a.hooks.run("before-all-elements-highlight",r);for(var i,l=0;i=r.elements[l++];)a.highlightElement(i,!0===n,r.callback)},highlightElement:function(n,t,r){var i=a.util.getLanguage(n),l=a.languages[i];a.util.setLanguage(n,i);var o=n.parentElement;o&&"pre"===o.nodeName.toLowerCase()&&a.util.setLanguage(o,i);var s={element:n,language:i,grammar:l,code:n.textContent};function u(e){s.highlightedCode=e,a.hooks.run("before-insert",s),s.element.innerHTML=s.highlightedCode,a.hooks.run("after-highlight",s),a.hooks.run("complete",s),r&&r.call(s.element)}if(a.hooks.run("before-sanity-check",s),(o=s.element.parentElement)&&"pre"===o.nodeName.toLowerCase()&&!o.hasAttribute("tabindex")&&o.setAttribute("tabindex","0"),!s.code)return a.hooks.run("complete",s),void(r&&r.call(s.element));if(a.hooks.run("before-highlight",s),s.grammar)if(t&&e.Worker){var c=new Worker(a.filename);c.onmessage=function(e){u(e.data)},c.postMessage(JSON.stringify({language:s.language,code:s.code,immediateClose:!0}))}else u(a.highlight(s.code,s.grammar,s.language));else u(a.util.encode(s.code))},highlight:function(e,n,t){var r={code:e,grammar:n,language:t};if(a.hooks.run("before-tokenize",r),!r.grammar)throw new Error('The language "'+r.language+'" has no grammar.');return r.tokens=a.tokenize(r.code,r.grammar),a.hooks.run("after-tokenize",r),i.stringify(a.util.encode(r.tokens),r.language)},tokenize:function(e,n){var t=n.rest;if(t){for(var r in t)n[r]=t[r];delete n.rest}var a=new s;return u(a,a.head,e),o(e,a,n,a.head,0),function(e){for(var n=[],t=e.head.next;t!==e.tail;)n.push(t.value),t=t.next;return n}(a)},hooks:{all:{},add:function(e,n){var t=a.hooks.all;t[e]=t[e]||[],t[e].push(n)},run:function(e,n){var t=a.hooks.all[e];if(t&&t.length)for(var r,i=0;r=t[i++];)r(n)}},Token:i};function i(e,n,t,r){this.type=e,this.content=n,this.alias=t,this.length=0|(r||"").length}function l(e,n,t,r){e.lastIndex=n;var a=e.exec(t);if(a&&r&&a[1]){var i=a[1].length;a.index+=i,a[0]=a[0].slice(i)}return a}function o(e,n,t,r,s,g){for(var f in t)if(t.hasOwnProperty(f)&&t[f]){var h=t[f];h=Array.isArray(h)?h:[h];for(var d=0;d<h.length;++d){if(g&&g.cause==f+","+d)return;var v=h[d],p=v.inside,m=!!v.lookbehind,y=!!v.greedy,k=v.alias;if(y&&!v.pattern.global){var x=v.pattern.toString().match(/[imsuy]*$/)[0];v.pattern=RegExp(v.pattern.source,x+"g")}for(var b=v.pattern||v,w=r.next,A=s;w!==n.tail&&!(g&&A>=g.reach);A+=w.value.length,w=w.next){var E=w.value;if(n.length>e.length)return;if(!(E instanceof i)){var P,L=1;if(y){if(!(P=l(b,A,e,m))||P.index>=e.length)break;var S=P.index,O=P.index+P[0].length,j=A;for(j+=w.value.length;S>=j;)j+=(w=w.next).value.length;if(A=j-=w.value.length,w.value instanceof i)continue;for(var C=w;C!==n.tail&&(j<O||"string"==typeof C.value);C=C.next)L++,j+=C.value.length;L--,E=e.slice(A,j),P.index-=A}else if(!(P=l(b,0,E,m)))continue;S=P.index;var N=P[0],_=E.slice(0,S),M=E.slice(S+N.length),W=A+E.length;g&&W>g.reach&&(g.reach=W);var z=w.prev;if(_&&(z=u(n,z,_),A+=_.length),c(n,z,L),w=u(n,z,new i(f,p?a.tokenize(N,p):N,k,N)),M&&u(n,w,M),L>1){var I={cause:f+","+d,reach:W};o(e,n,t,w.prev,A,I),g&&I.reach>g.reach&&(g.reach=I.reach)}}}}}}function s(){var e={value:null,prev:null,next:null},n={value:null,prev:e,next:null};e.next=n,this.head=e,this.tail=n,this.length=0}function u(e,n,t){var r=n.next,a={value:t,prev:n,next:r};return n.next=a,r.prev=a,e.length++,a}function c(e,n,t){for(var r=n.next,a=0;a<t&&r!==e.tail;a++)r=r.next;n.next=r,r.prev=n,e.length-=a}if(e.Prism=a,i.stringify=function e(n,t){if("string"==typeof n)return n;if(Array.isArray(n)){var r="";return n.forEach((function(n){r+=e(n,t)})),r}var i={type:n.type,content:e(n.content,t),tag:"span",classes:["token",n.type],attributes:{},language:t},l=n.alias;l&&(Array.isArray(l)?Array.prototype.push.apply(i.classes,l):i.classes.push(l)),a.hooks.run("wrap",i);var o="";for(var s in i.attributes)o+=" "+s+'="'+(i.attributes[s]||"").replace(/"/g,"&quot;")+'"';return"<"+i.tag+' class="'+i.classes.join(" ")+'"'+o+">"+i.content+"</"+i.tag+">"},!e.document)return e.addEventListener?(a.disableWorkerMessageHandler||e.addEventListener("message",(function(n){var t=JSON.parse(n.data),r=t.language,i=t.code,l=t.immediateClose;e.postMessage(a.highlight(i,a.languages[r],r)),l&&e.close()}),!1),a):a;var g=a.util.currentScript();function f(){a.manual||a.highlightAll()}if(g&&(a.filename=g.src,g.hasAttribute("data-manual")&&(a.manual=!0)),!a.manual){var h=document.readyState;"loading"===h||"interactive"===h&&g&&g.defer?document.addEventListener("DOMContentLoaded",f):window.requestAnimationFrame?window.requestAnimationFrame(f):window.setTimeout(f,16)}return a}(_self);"undefined"!=typeof module&&module.exports&&(module.exports=Prism),"undefined"!=typeof global&&(global.Prism=Prism);
+Prism.languages.markup={comment:{pattern:/<!--(?:(?!<!--)[\s\S])*?-->/,greedy:!0},prolog:{pattern:/<\?[\s\S]+?\?>/,greedy:!0},doctype:{pattern:/<!DOCTYPE(?:[^>"'[\]]|"[^"]*"|'[^']*')+(?:\[(?:[^<"'\]]|"[^"]*"|'[^']*'|<(?!!--)|<!--(?:[^-]|-(?!->))*-->)*\]\s*)?>/i,greedy:!0,inside:{"internal-subset":{pattern:/(^[^\[]*\[)[\s\S]+(?=\]>$)/,lookbehind:!0,greedy:!0,inside:null},string:{pattern:/"[^"]*"|'[^']*'/,greedy:!0},punctuation:/^<!|>$|[[\]]/,"doctype-tag":/^DOCTYPE/i,name:/[^\s<>'"]+/}},cdata:{pattern:/<!\[CDATA\[[\s\S]*?\]\]>/i,greedy:!0},tag:{pattern:/<\/?(?!\d)[^\s>\/=$<%]+(?:\s(?:\s*[^\s>\/=]+(?:\s*=\s*(?:"[^"]*"|'[^']*'|[^\s'">=]+(?=[\s>]))|(?=[\s/>])))+)?\s*\/?>/,greedy:!0,inside:{tag:{pattern:/^<\/?[^\s>\/]+/,inside:{punctuation:/^<\/?/,namespace:/^[^\s>\/:]+:/}},"special-attr":[],"attr-value":{pattern:/=\s*(?:"[^"]*"|'[^']*'|[^\s'">=]+)/,inside:{punctuation:[{pattern:/^=/,alias:"attr-equals"},{pattern:/^(\s*)["']|["']$/,lookbehind:!0}]}},punctuation:/\/?>/,"attr-name":{pattern:/[^\s>\/]+/,inside:{namespace:/^[^\s>\/:]+:/}}}},entity:[{pattern:/&[\da-z]{1,8};/i,alias:"named-entity"},/&#x?[\da-f]{1,8};/i]},Prism.languages.markup.tag.inside["attr-value"].inside.entity=Prism.languages.markup.entity,Prism.languages.markup.doctype.inside["internal-subset"].inside=Prism.languages.markup,Prism.hooks.add("wrap",(function(a){"entity"===a.type&&(a.attributes.title=a.content.replace(/&amp;/,"&"))})),Object.defineProperty(Prism.languages.markup.tag,"addInlined",{value:function(a,e){var s={};s["language-"+e]={pattern:/(^<!\[CDATA\[)[\s\S]+?(?=\]\]>$)/i,lookbehind:!0,inside:Prism.languages[e]},s.cdata=/^<!\[CDATA\[|\]\]>$/i;var t={"included-cdata":{pattern:/<!\[CDATA\[[\s\S]*?\]\]>/i,inside:s}};t["language-"+e]={pattern:/[\s\S]+/,inside:Prism.languages[e]};var n={};n[a]={pattern:RegExp("(<__[^>]*>)(?:<!\\[CDATA\\[(?:[^\\]]|\\](?!\\]>))*\\]\\]>|(?!<!\\[CDATA\\[)[^])*?(?=</__>)".replace(/__/g,(function(){return a})),"i"),lookbehind:!0,greedy:!0,inside:t},Prism.languages.insertBefore("markup","cdata",n)}}),Object.defineProperty(Prism.languages.markup.tag,"addAttribute",{value:function(a,e){Prism.languages.markup.tag.inside["special-attr"].push({pattern:RegExp("(^|[\"'\\s])(?:"+a+")\\s*=\\s*(?:\"[^\"]*\"|'[^']*'|[^\\s'\">=]+(?=[\\s>]))","i"),lookbehind:!0,inside:{"attr-name":/^[^\s=]+/,"attr-value":{pattern:/=[\s\S]+/,inside:{value:{pattern:/(^=\s*(["']|(?!["'])))\S[\s\S]*(?=\2$)/,lookbehind:!0,alias:[e,"language-"+e],inside:Prism.languages[e]},punctuation:[{pattern:/^=/,alias:"attr-equals"},/"|'/]}}}})}}),Prism.languages.html=Prism.languages.markup,Prism.languages.mathml=Prism.languages.markup,Prism.languages.svg=Prism.languages.markup,Prism.languages.xml=Prism.languages.extend("markup",{}),Prism.languages.ssml=Prism.languages.xml,Prism.languages.atom=Prism.languages.xml,Prism.languages.rss=Prism.languages.xml;
+!function(s){var e=/(?:"(?:\\(?:\r\n|[\s\S])|[^"\\\r\n])*"|'(?:\\(?:\r\n|[\s\S])|[^'\\\r\n])*')/;s.languages.css={comment:/\/\*[\s\S]*?\*\//,atrule:{pattern:RegExp("@[\\w-](?:[^;{\\s\"']|\\s+(?!\\s)|"+e.source+")*?(?:;|(?=\\s*\\{))"),inside:{rule:/^@[\w-]+/,"selector-function-argument":{pattern:/(\bselector\s*\(\s*(?![\s)]))(?:[^()\s]|\s+(?![\s)])|\((?:[^()]|\([^()]*\))*\))+(?=\s*\))/,lookbehind:!0,alias:"selector"},keyword:{pattern:/(^|[^\w-])(?:and|not|only|or)(?![\w-])/,lookbehind:!0}}},url:{pattern:RegExp("\\burl\\((?:"+e.source+"|(?:[^\\\\\r\n()\"']|\\\\[^])*)\\)","i"),greedy:!0,inside:{function:/^url/i,punctuation:/^\(|\)$/,string:{pattern:RegExp("^"+e.source+"$"),alias:"url"}}},selector:{pattern:RegExp("(^|[{}\\s])[^{}\\s](?:[^{};\"'\\s]|\\s+(?![\\s{])|"+e.source+")*(?=\\s*\\{)"),lookbehind:!0},string:{pattern:e,greedy:!0},property:{pattern:/(^|[^-\w\xA0-\uFFFF])(?!\s)[-_a-z\xA0-\uFFFF](?:(?!\s)[-\w\xA0-\uFFFF])*(?=\s*:)/i,lookbehind:!0},important:/!important\b/i,function:{pattern:/(^|[^-a-z0-9])[-a-z0-9]+(?=\()/i,lookbehind:!0},punctuation:/[(){};:,]/},s.languages.css.atrule.inside.rest=s.languages.css;var t=s.languages.markup;t&&(t.tag.addInlined("style","css"),t.tag.addAttribute("style","css"))}(Prism);
+Prism.languages.clike={comment:[{pattern:/(^|[^\\])\/\*[\s\S]*?(?:\*\/|$)/,lookbehind:!0,greedy:!0},{pattern:/(^|[^\\:])\/\/.*/,lookbehind:!0,greedy:!0}],string:{pattern:/(["'])(?:\\(?:\r\n|[\s\S])|(?!\1)[^\\\r\n])*\1/,greedy:!0},"class-name":{pattern:/(\b(?:class|extends|implements|instanceof|interface|new|trait)\s+|\bcatch\s+\()[\w.\\]+/i,lookbehind:!0,inside:{punctuation:/[.\\]/}},keyword:/\b(?:break|catch|continue|do|else|finally|for|function|if|in|instanceof|new|null|return|throw|try|while)\b/,boolean:/\b(?:false|true)\b/,function:/\b\w+(?=\()/,number:/\b0x[\da-f]+\b|(?:\b\d+(?:\.\d*)?|\B\.\d+)(?:e[+-]?\d+)?/i,operator:/[<>]=?|[!=]=?=?|--?|\+\+?|&&?|\|\|?|[?*/~^%]/,punctuation:/[{}[\];(),.:]/};
+Prism.languages.javascript=Prism.languages.extend("clike",{"class-name":[Prism.languages.clike["class-name"],{pattern:/(^|[^$\w\xA0-\uFFFF])(?!\s)[_$A-Z\xA0-\uFFFF](?:(?!\s)[$\w\xA0-\uFFFF])*(?=\.(?:constructor|prototype))/,lookbehind:!0}],keyword:[{pattern:/((?:^|\})\s*)catch\b/,lookbehind:!0},{pattern:/(^|[^.]|\.\.\.\s*)\b(?:as|assert(?=\s*\{)|async(?=\s*(?:function\b|\(|[$\w\xA0-\uFFFF]|$))|await|break|case|class|const|continue|debugger|default|delete|do|else|enum|export|extends|finally(?=\s*(?:\{|$))|for|from(?=\s*(?:['"]|$))|function|(?:get|set)(?=\s*(?:[#\[$\w\xA0-\uFFFF]|$))|if|implements|import|in|instanceof|interface|let|new|null|of|package|private|protected|public|return|static|super|switch|this|throw|try|typeof|undefined|var|void|while|with|yield)\b/,lookbehind:!0}],function:/#?(?!\s)[_$a-zA-Z\xA0-\uFFFF](?:(?!\s)[$\w\xA0-\uFFFF])*(?=\s*(?:\.\s*(?:apply|bind|call)\s*)?\()/,number:{pattern:RegExp("(^|[^\\w$])(?:NaN|Infinity|0[bB][01]+(?:_[01]+)*n?|0[oO][0-7]+(?:_[0-7]+)*n?|0[xX][\\dA-Fa-f]+(?:_[\\dA-Fa-f]+)*n?|\\d+(?:_\\d+)*n|(?:\\d+(?:_\\d+)*(?:\\.(?:\\d+(?:_\\d+)*)?)?|\\.\\d+(?:_\\d+)*)(?:[Ee][+-]?\\d+(?:_\\d+)*)?)(?![\\w$])"),lookbehind:!0},operator:/--|\+\+|\*\*=?|=>|&&=?|\|\|=?|[!=]==|<<=?|>>>?=?|[-+*/%&|^!=<>]=?|\.{3}|\?\?=?|\?\.?|[~:]/}),Prism.languages.javascript["class-name"][0].pattern=/(\b(?:class|extends|implements|instanceof|interface|new)\s+)[\w.\\]+/,Prism.languages.insertBefore("javascript","keyword",{regex:{pattern:RegExp("((?:^|[^$\\w\\xA0-\\uFFFF.\"'\\])\\s]|\\b(?:return|yield))\\s*)/(?:(?:\\[(?:[^\\]\\\\\r\n]|\\\\.)*\\]|\\\\.|[^/\\\\\\[\r\n])+/[dgimyus]{0,7}|(?:\\[(?:[^[\\]\\\\\r\n]|\\\\.|\\[(?:[^[\\]\\\\\r\n]|\\\\.|\\[(?:[^[\\]\\\\\r\n]|\\\\.)*\\])*\\])*\\]|\\\\.|[^/\\\\\\[\r\n])+/[dgimyus]{0,7}v[dgimyus]{0,7})(?=(?:\\s|/\\*(?:[^*]|\\*(?!/))*\\*/)*(?:$|[\r\n,.;:})\\]]|//))"),lookbehind:!0,greedy:!0,inside:{"regex-source":{pattern:/^(\/)[\s\S]+(?=\/[a-z]*$)/,lookbehind:!0,alias:"language-regex",inside:Prism.languages.regex},"regex-delimiter":/^\/|\/$/,"regex-flags":/^[a-z]+$/}},"function-variable":{pattern:/#?(?!\s)[_$a-zA-Z\xA0-\uFFFF](?:(?!\s)[$\w\xA0-\uFFFF])*(?=\s*[=:]\s*(?:async\s*)?(?:\bfunction\b|(?:\((?:[^()]|\([^()]*\))*\)|(?!\s)[_$a-zA-Z\xA0-\uFFFF](?:(?!\s)[$\w\xA0-\uFFFF])*)\s*=>))/,alias:"function"},parameter:[{pattern:/(function(?:\s+(?!\s)[_$a-zA-Z\xA0-\uFFFF](?:(?!\s)[$\w\xA0-\uFFFF])*)?\s*\(\s*)(?!\s)(?:[^()\s]|\s+(?![\s)])|\([^()]*\))+(?=\s*\))/,lookbehind:!0,inside:Prism.languages.javascript},{pattern:/(^|[^$\w\xA0-\uFFFF])(?!\s)[_$a-z\xA0-\uFFFF](?:(?!\s)[$\w\xA0-\uFFFF])*(?=\s*=>)/i,lookbehind:!0,inside:Prism.languages.javascript},{pattern:/(\(\s*)(?!\s)(?:[^()\s]|\s+(?![\s)])|\([^()]*\))+(?=\s*\)\s*=>)/,lookbehind:!0,inside:Prism.languages.javascript},{pattern:/((?:\b|\s|^)(?!(?:as|async|await|break|case|catch|class|const|continue|debugger|default|delete|do|else|enum|export|extends|finally|for|from|function|get|if|implements|import|in|instanceof|interface|let|new|null|of|package|private|protected|public|return|set|static|super|switch|this|throw|try|typeof|undefined|var|void|while|with|yield)(?![$\w\xA0-\uFFFF]))(?:(?!\s)[_$a-zA-Z\xA0-\uFFFF](?:(?!\s)[$\w\xA0-\uFFFF])*\s*)\(\s*|\]\s*\(\s*)(?!\s)(?:[^()\s]|\s+(?![\s)])|\([^()]*\))+(?=\s*\)\s*\{)/,lookbehind:!0,inside:Prism.languages.javascript}],constant:/\b[A-Z](?:[A-Z_]|\dx?)*\b/}),Prism.languages.insertBefore("javascript","string",{hashbang:{pattern:/^#!.*/,greedy:!0,alias:"comment"},"template-string":{pattern:/`(?:\\[\s\S]|\$\{(?:[^{}]|\{(?:[^{}]|\{[^}]*\})*\})+\}|(?!\$\{)[^\\`])*`/,greedy:!0,inside:{"template-punctuation":{pattern:/^`|`$/,alias:"string"},interpolation:{pattern:/((?:^|[^\\])(?:\\{2})*)\$\{(?:[^{}]|\{(?:[^{}]|\{[^}]*\})*\})+\}/,lookbehind:!0,inside:{"interpolation-punctuation":{pattern:/^\$\{|\}$/,alias:"punctuation"},rest:Prism.languages.javascript}},string:/[\s\S]+/}},"string-property":{pattern:/((?:^|[,{])[ \t]*)(["'])(?:\\(?:\r\n|[\s\S])|(?!\2)[^\\\r\n])*\2(?=\s*:)/m,lookbehind:!0,greedy:!0,alias:"property"}}),Prism.languages.insertBefore("javascript","operator",{"literal-property":{pattern:/((?:^|[,{])[ \t]*)(?!\s)[_$a-zA-Z\xA0-\uFFFF](?:(?!\s)[$\w\xA0-\uFFFF])*(?=\s*:)/m,lookbehind:!0,alias:"property"}}),Prism.languages.markup&&(Prism.languages.markup.tag.addInlined("script","javascript"),Prism.languages.markup.tag.addAttribute("on(?:abort|blur|change|click|composition(?:end|start|update)|dblclick|error|focus(?:in|out)?|key(?:down|up)|load|mouse(?:down|enter|leave|move|out|over|up)|reset|resize|scroll|select|slotchange|submit|unload|wheel)","javascript")),Prism.languages.js=Prism.languages.javascript;
+!function(){if("undefined"!=typeof Prism){var n,s,a="";Prism.plugins.customClass={add:function(s){n=s},map:function(n){s="function"==typeof n?n:function(s){return n[s]||s}},prefix:function(n){a=n||""},apply:t},Prism.hooks.add("wrap",(function(e){if(n){var u=n({content:e.content,type:e.type,language:e.language});Array.isArray(u)?e.classes.push.apply(e.classes,u):u&&e.classes.push(u)}(s||a)&&(e.classes=e.classes.map((function(n){return t(n,e.language)})))}))}function t(n,t){return a+(s?s(n,t):n)}}();
diff --git a/docs/assets/scripts/remix.js b/docs/assets/scripts/remix.js
new file mode 100644
index 000000000..fb99d19df
--- /dev/null
+++ b/docs/assets/scripts/remix.js
@@ -0,0 +1,37 @@
+/**
+ * Get import code for remixed themes.
+ */
+export const urls = {
+  colors: id => `styles/themes/${id}/color.css`,
+  palette: id => `styles/color/${id}.css`,
+  brand: id => `styles/brand/${id}.css`,
+  typography: id => `styles/themes/${id}/typography.css`,
+};
+
+function getImport(url, options = {}) {
+  let { language = 'html', cdnUrl = '/dist/', attributes } = options;
+  url = cdnUrl + url;
+
+  if (language === 'css') {
+    return `@import url('${url}');`;
+  } else {
+    attributes = attributes ? ` ${attributes}` : '';
+    return `<link rel="stylesheet" href="${url}"${attributes} />`;
+  }
+}
+
+export function getCode(base, params, options) {
+  let ret = [];
+
+  if (base) {
+    ret.push(`styles/themes/${base}.css`);
+  }
+
+  ret.push(
+    ...Object.entries(params)
+      .filter(([aspect, id]) => Boolean(id))
+      .map(([aspect, id]) => urls[aspect](id)),
+  );
+
+  return ret.map(url => getImport(url, options)).join('\n');
+}
diff --git a/docs/docs/themes/demo.njk b/docs/docs/themes/demo.njk
index 634fb20ad..d8320e6f4 100644
--- a/docs/docs/themes/demo.njk
+++ b/docs/docs/themes/demo.njk
@@ -11,7 +11,6 @@ eleventyComputed:
   forceTheme: "{{ theme.fileSlug }}"
 ---
 
-<link rel="stylesheet" href="/dist/styles/themes/{{ theme.fileSlug }}.css" />
 <link rel="stylesheet" href="/docs/themes/showcase.css" />
 
 {% set content %}
@@ -34,37 +33,45 @@ eleventyComputed:
 </div>
 </wa-image-comparer>
 
-<script>
+<script type="module">
+import { getCode, urls as stylesheetURLs } from "/assets/scripts/remix.js";
+
 function updateTheme() {
   let params = new URLSearchParams(window.location.search);
-  let script = document.currentScript;
-  const stylesheetURLs = {
-    colors: id => `/dist/styles/themes/${ id }/color.css`,
-    palette: id => `/dist/styles/color/${ id }.css`,
-    brand: id => `/dist/styles/brand/${ id }.css`,
-    typography: id => `/dist/styles/themes/${ id }/typography.css`
+  params = Object.fromEntries(params.entries());
+
+  const docsURLs = {
+    colors: '/docs/themes/',
+    palette: '/docs/palettes/',
+    typography: '/docs/themes/'
   };
   const icons = {
     colors: 'palette',
     palette: 'swatchbook',
     brand: 'droplet',
     typography: 'font-case'
-  }
+  };
 
   for (let link of document.querySelectorAll('link.mix-and-match')) {
     link.remove();
   }
 
   let msgs = [];
+  let code = getCode("{{ theme.fileSlug }}", params, {attributes: 'class="mix-and-match"'});
+  document.head.insertAdjacentHTML('beforeend', code);
 
   for (let name in stylesheetURLs) {
-    if (params.get(name)) {
-      let url = stylesheetURLs[name](params.get(name));
-      script.insertAdjacentHTML('beforebegin', `<link rel="stylesheet" href="${ url }" class="mix-and-match" />`);
-      let docsURL = (name === 'palette' ? '/docs/palettes/' : '/docs/themes/') + params.get(name) + '/';
-      let title = params.get(name).replace(/^[a-z]/g, c => c.toUpperCase());
+    let override = params[name];
+    if (override) {
+      let docsURL = docsURLs[name] ? docsURLs[name] + override + '/' : '';
+      let title = override.replace(/^[a-z]/g, c => c.toUpperCase());
+
+      if (docsURL) {
+        title = `<a href="${ docsURL }">${ title }</a>`;
+      }
+
       let icon = icons[name];
-      msgs.push(`<wa-icon name="${icon}" variant="regular"></wa-icon> <a href="${ docsURL }">${ title }</a>`);
+      msgs.push(`<wa-icon name="${icon}" variant="regular"></wa-icon> ${ title }`);
     }
   }
 
diff --git a/docs/docs/themes/remix.js b/docs/docs/themes/remix.js
index e5e3add7e..4377db64e 100644
--- a/docs/docs/themes/remix.js
+++ b/docs/docs/themes/remix.js
@@ -1,7 +1,16 @@
+import { getCode } from '/assets/scripts/remix.js';
+
 await Promise.all(['wa-select', 'wa-option', 'wa-details'].map(tag => customElements.whenDefined(tag)));
+globalThis.Prism = globalThis.Prism || {};
+globalThis.Prism.manual = true;
+await import('/assets/scripts/prism.js');
+Prism.plugins.customClass.prefix('code-');
+
+const cdnUrl = document.documentElement.dataset.cdnUrl;
+
 const domChange = document.startViewTransition ? document.startViewTransition.bind(document) : fn => fn();
 
-let selects, data;
+let selects, data, codeSnippets;
 
 let computed = {
   get isRemixed() {
@@ -25,6 +34,12 @@ function init() {
     [...document.querySelectorAll('#mix_and_match wa-select')].map(select => [select.getAttribute('name'), select]),
   );
 
+  codeSnippets = document.querySelector('#usage ~ wa-tab-group.import-stylesheet-code:first-of-type');
+  codeSnippets = {
+    html: codeSnippets.querySelector('code.language-html'),
+    css: codeSnippets.querySelector('code.language-css'),
+  };
+
   data = {
     baseTheme: wa_data.baseTheme,
     themes: wa_data.themes,
@@ -66,7 +81,7 @@ function init() {
 
   Promise.all(Object.values(selects).map(select => select.updateComplete)).then(() => render());
 
-  return { selects, data, computed, render };
+  return { selects, codeSnippets, data, computed, render };
 }
 
 globalThis.remixApp = init();
@@ -139,6 +154,16 @@ function render(changedAspect) {
   // We don’t want to clog the user’s history while they iterate
   let historyAction = location.search ? 'replaceState' : 'pushState';
   history[historyAction](null, '', `?${data.urlParams}`);
+
+  // Update code snippets
+  for (let language in codeSnippets) {
+    let codeSnippet = codeSnippets[language];
+    let copyButton = codeSnippet.previousElementSibling;
+    let code = getCode(data.baseTheme, data.params, { language, cdnUrl });
+    codeSnippet.textContent = code;
+    copyButton.value = code;
+    Prism.highlightElement(codeSnippet);
+  }
 }
 
 addEventListener('turbo:render', event => {