core: actually change bg

default.css

@@ -14,7 +14,7 @@
 body {
     font-family: Arial, sans-serif;
     color: #06CDFF;
-    background: #003161;
+    background: #03001C;
     line-height: 1.5;
     margin-inline: auto;
     margin: 0 auto;
@@ -28,11 +28,11 @@ body {
 }
 
 .first {
-    background: #003161;
+    background: #03001C;
 }
 
 .second {
-    background: #003161;
+    background: #03001C;
 }
 
 #navigation {
@@ -51,7 +51,7 @@ body {
 
 .navItem {
     color: #06CDFF;
-    background-color: #301E67;
+    background-color: #03001C;
     margin: 6px;
     margin-top: 0px;
     padding: 8px;
@@ -94,7 +94,7 @@ h2 {
     text-align: center;
     margin: auto;
     padding: 8px;
-    background: #003161;
+    background: #03001C;
     border-radius: 24px;
 }
 
@@ -152,5 +152,5 @@ a.button {
 #pong {
     margin: 6px;
     border-radius: 9px;
-    background: #003161;
+    background: #03001C;
 }