When displaying a preset image, use display:none for siblings

visibility:hidden still preserves space, which would uncenter the image in some cases

css/80_app.css

@@ -1085,7 +1085,7 @@ a.hide-toggle {
     visibility: visible;
 }
 .preset-icon-container.showing-img *:not(.image-icon) {
-    visibility: hidden;
+    display: none;
 }
 
 .preset-icon-point-border path {
@@ -5636,4 +5636,4 @@ li.hide + li.version .badge .tooltip .popover-arrow {
     height: 100px;
     width: 100px;
     color: #7092ff;
-}
+}