[TASK] reset muted color to pico standard color

static/serve/style.css

@@ -30,6 +30,10 @@ h1 {
   text-align: center;
 }
 
+hgroup>:not(:first-child):last-child {
+  --pico-color: var(--pico-color);
+}
+
 h2 {
     --pico-typography-spacing-top: 4rem;
 }