functional card/row edit and drag

Serialization/SerialImage.cs

@@ -0,0 +1,17 @@
+using System.Text.Json.Serialization;
+using Godot;
+
+public class SerialImage
+{
+    [JsonInclude]
+    public byte[] DataWebp { get; set; }
+    [JsonInclude]
+    [JsonConverter(typeof(JsonStringEnumConverter))]
+    public StretchMode StretchMode { get; set; }
+    public ImageWithMetadata ToImageWithMetadata()
+    {
+        var im = new Image();
+        im.LoadWebpFromBuffer(DataWebp);
+        return new(im, StretchMode);
+    }
+}