Update app.py

app.py

@@ -122,14 +122,14 @@ STYLE = """
 }
 /*Hover-Section*/
 .tree li a:hover, .tree li a:hover+ul li a {
-	background: #c8e4f8;
+	background: #ffedd5;
 	color: #000;
 }
 .tree li a:hover+ul li::after, .tree li a:hover+ul li::before, .tree li a:hover+ul::before, .tree li a:hover+ul ul::before {
-	border-color: #94a0b4;
+	border-color: #7c2d12;
 }
 .chosen {
-    background-color: red;
+    background-color: #ea580c;
 }
 """