change the background to white

pet-wrapper-api.py

@@ -215,7 +215,7 @@ class PET(plugin.PluginAbstract):
                     margin: 0;
                     padding: 20px;
                     line-height: 1.6;
-                    background-color: #1a1a1a;
+                    background-color: white;
                     display: flex;
                     flex-direction: column;
                     align-items: center;