Json serialization improved

src/main/java/org/saturnclient/config/property/IntProperty.java

@@ -1,5 +1,8 @@
 package org.saturnclient.config.property;
 
+import com.fasterxml.jackson.databind.JsonNode;
+import com.fasterxml.jackson.databind.node.JsonNodeFactory;
+
 public class IntProperty extends Property {
     public int value;
     public final int defaultValue;
@@ -8,4 +11,17 @@ public class IntProperty extends Property {
         this.value = defaultValue;
         this.defaultValue = defaultValue;
     }
+
+    @Override
+    public JsonNode toJson() {
+        return JsonNodeFactory.instance.numberNode(this.value);
+    }
+
+    @Override
+    public void loadFromJson(JsonNode element) {
+        if (element.isInt())
+            this.value = element.intValue();
+        else if (element.isTextual())
+            this.value = ColorProperty.parseHexToInt(element.textValue());
+    }
 }