diff --git a/spec/index.bs b/spec/index.bs
index 136bfe8dc..7eef8d54d 100644
--- a/spec/index.bs
+++ b/spec/index.bs
@@ -74,6 +74,15 @@ dl.domintro dt code {
     padding: 8px;
     border-left: 8px solid brown;
 }
+
+/* temporary fixes to the typogram diagrams
+   to support dark mode properly */
+script + svg :is(polygon, line, rect):not(.grid) {
+  stroke: currentcolor;
+}
+script + svg :is(polygon, text) {
+  fill: currentcolor;
+}
 </style>
 
 <script src="https://fedidcg.github.io/FedCM/static/underscore-min.js"></script>