diff --git a/src/lib/constants.js b/src/lib/constants.js
index 9955b86..a873ef4 100644
--- a/src/lib/constants.js
+++ b/src/lib/constants.js
@@ -68,8 +68,20 @@ let constants = {
 		feed_disabled_max_age: 2*24*60*60 // 2 days
 	},
 
+	// Enabled themes. `file` is the filename without extension. `name` is the display name on the settings page.
+	// If you make your own theme, I encourage you to submit a pull request for it!
+	themes: [
+		{file: "classic", name: "Classic"},
+		{file: "blue", name: "Classic blue"}
+	],
+
 	user_settings: [
 		{
+			name: "theme",
+			default: "classic",
+			boolean: false,
+			replaceEmptyWithDefault: true
+		},{
 			name: "language",
 			default: "en",
 			boolean: false,
@@ -89,11 +101,6 @@ let constants = {
 			default: "on",
 			boolean: true,
 			replaceEmptyWithDefault: false
-		},{
-			name: "theme",
-			default: "classic",
-			boolean: false,
-			replaceEmptyWithDefault: true
 		},{
 			name: "caption_side",
 			default: "left",
diff --git a/src/site/api/settings.js b/src/site/api/settings.js
index e84c444..d5205a2 100644
--- a/src/site/api/settings.js
+++ b/src/site/api/settings.js
@@ -10,7 +10,7 @@ module.exports = [
 			const settings = getSettings(req)
 			// console.log(settings)
 			const saved = url.searchParams.has("saved")
-			return render(200, "pug/settings.pug", {saved, settings})
+			return render(200, "pug/settings.pug", {saved, constants, settings})
 		}
 	},
 	{
diff --git a/src/site/pug/settings.pug b/src/site/pug/settings.pug
index 0dd02fb..11c3bda 100644
--- a/src/site/pug/settings.pug
+++ b/src/site/pug/settings.pug
@@ -63,10 +63,7 @@ html
 					+checkbox("spa", "Fast navigation", "Enabled", false)
 
 				+fieldset("Appearance")
-					+select("theme", "Theme", false, [
-						{value: "classic", text: "Classic"},
-						{value: "blue", text: "Classic blue"}
-					])
+					+select("theme", "Theme", false, constants.themes.map(entry => ({value: entry.file, text: entry.name})))
 
 					+checkbox("display_top_nav", "Display top bar", "Always", false)
 
diff --git a/src/site/server.js b/src/site/server.js
index ca69801..fb20682 100644
--- a/src/site/server.js
+++ b/src/site/server.js
@@ -21,8 +21,9 @@ subdirs("pug", async (err, dirs) => {
 	await require("../lib/utils/upgradedb")()
 
 	pinski.setNotFoundTarget("/404")
-	pinski.addRoute("/static/css/classic.css", "sass/classic.sass", "sass")
-	pinski.addRoute("/static/css/blue.css", "sass/blue.sass", "sass")
+	for (const theme of constants.themes) {
+		pinski.addRoute(`/static/css/${theme.file}.css`, `sass/${theme.file}.sass`, "sass")
+	}
 	pinski.addRoute("/settings", "pug/settings.pug", "pug")
 	pinski.addPugDir("pug", dirs)
 	pinski.addSassDir("sass", ["sass/includes", "sass/themes"])