Update style.css

style.css

@@ -111,9 +111,15 @@ h1 {
   background-color: #121212;
   border-radius: 30px !important;
 }
+#input_image_container .styler{
+  background-color: white !important
+}
 #output_image_container{
   overflow: hidden !important;
 }
+#output_image_container .styler{
+  background-color: #121212 !important
+}
 .image_container .controls-wrap {
   display: none !important;
 }
@@ -122,7 +128,6 @@ h1 {
   display: none !important;
 }
 .image_container>div.styler {
-  background-color: transparent !important;
   overflow:hidden;
   border-radius:30px;
   flex-grow: 1;