X fix

templates/index.html

@@ -244,6 +244,14 @@
         [data-theme="dark"] .modal-body .text-muted {
             color: #f6f6f7 !important;
         }
+
+        .btn-close {
+            filter: none;
+        }
+
+        [data-theme="dark"] .btn-close {
+            filter: invert(1) grayscale(100%) brightness(200%);
+        }
     </style>
 </head>