@@ -1,5 +1,7 @@
 "use strict";
 
+const fs = require("fs");
+const path = require("path");
 const send = require("koa-send");
 const responders = require("./responders");
 
@@ -7,6 +9,25 @@ function home(config, posts) {
   const postsArray = Array.from(posts.values());
   return async function(ctx, next) {
     responders.home(ctx, config, postsArray);
+  };
+}
+
+function highlightTheme(config) {
+  const theme = config.posts.code.theme;
+  const themeFile = path.resolve(
+    __dirname,
+    `../node_modules/highlight.js/styles/${theme}.css`
+  );
+
+  if (!fs.existsSync(themeFile)) {
+    throw new Error(`Couldn't find highlight theme ${theme}`);
+  }
+
+  const css = fs.readFileSync(themeFile, "utf-8");
+
+  return async function(ctx, next) {
+    ctx.type = "css";
+    ctx.body = css;
   };
 }
 
@@ -41,6 +62,7 @@ }
 
 module.exports = {
   home,
+  highlightTheme,
   post,
   taxonGenerator,
   serveFiles