diff --git a/docs/prettify/threejs.css b/docs/prettify/threejs.css
index d578acffcf888bf95a8b3ac62eceab7ac45f97a1..750fc79781119c2ae3777171e23e0b4dd0a8c2a2 100644
--- a/docs/prettify/threejs.css
+++ b/docs/prettify/threejs.css
@@ -13,3 +13,16 @@ pre.prettyprint, code.prettyprint {
 	background-color: #F5F5F5;
 	font-family: 'Roboto Mono', monospace;
 }
+
+@media (prefers-color-scheme: dark) {
+
+	pre .str, code .str { color: #BB55FF; } /* string */
+	pre .com, code .com { color: #666666; } /* comment */
+	pre .lit, code .lit { color: #ff3399; } /* literal */
+	pre .pln, code .pln { color: #aaaaaa; } /* plaintext */
+
+	pre.prettyprint, code.prettyprint {
+		background-color: #333333;
+	}
+
+}