Added mutation hint upgrade.

Styles/Style.css

@@ -1292,6 +1292,19 @@ input, button, textarea, select {
     margin-bottom: 1rem;
 }
 
+.MutationHintCard {
+    border-color: var(--Yellow);
+}
+
+.MutationHintCard .MutationEncyclopediaHeader h2 {
+    color: var(--Yellow);
+}
+
+.MutationHintCard .MutationEncyclopediaDescription {
+    margin-bottom: 0;
+    color: var(--Subtext1);
+}
+
 .MutationEncyclopediaStats {
     display: grid;
     grid-template-columns: repeat( 2, minmax(0, 1fr) );