Admin dark-mode properly done

static/css/admin.css

@@ -1,4 +1,38 @@
 /* django-admin CSS patches */
 .select2-container {
-    min-width: 400px;
+  min-width: 400px;
+}
+
+@media (prefers-color-scheme: dark) {
+  /* Change the appearence of the bakground colour surrounding the search input field */
+  .select2-search {
+    background-color: #343a40 !important;
+  }
+  /* Change the appearence of the search input field */
+  .select2-search input {
+    color: #ffffff !important;
+    background-color: #343a40 !important;
+  }
+
+  /* Change the appearence of the search results container */
+  .select2-results {
+    background-color: #343a40 !important;
+  }
+
+  /* Change the appearence of the dropdown select container */
+  .select2-container .select2-selection {
+    border-color: #6c757d !important;
+    color: #ffffff !important;
+    background-color: #343a40 !important;
+  }
+
+  /* Change the caret down arrow symbol to white */
+  .select2-container .select2-selection__arrow b {
+    border-color: #fff transparent transparent transparent !important;
+  }
+
+  /* Change the color of the default selected item i.e. the first option */
+  .select2-container .select2-selection--single .select2-selection__rendered {
+    color: #ffffff !important;
+  }
 }

templates/base.html

@@ -72,6 +72,7 @@
       {% block content %} {% endblock %}
     </div>
     {% endblock %}
+    <script src="{% static 'js/jquery.min.js' %}"></script>
     <script src="{% static 'js/bootstrap.min.js' %}"></script>
   </body>
 </html>