loot tracker: add Kingdom of Miscellania

runelite-api/src/main/java/net/runelite/api/InventoryID.java

@@ -53,6 +53,10 @@ public enum InventoryID
 	 * Monkey madness puzzle box inventory.
 	 */
 	MONKEY_MADNESS_PUZZLE_BOX(221),
+	/**
+	 * Kingdom Of Miscellania reward inventory.
+	 */
+	KINGDOM_OF_MISCELLANIA(390),
 	/**
 	 * Chambers of Xeric chest inventory.
 	 */

runelite-client/src/main/java/net/runelite/client/plugins/loottracker/LootTrackerPlugin.java

@@ -391,6 +391,10 @@ public class LootTrackerPlugin extends Plugin
 				// Clue Scrolls use same InventoryID as Barrows
 				container = client.getItemContainer(InventoryID.BARROWS_REWARD);
 				break;
+			case (WidgetID.KINGDOM_GROUP_ID):
+				eventType = "Kingdom of Miscellania";
+				container = client.getItemContainer(InventoryID.KINGDOM_OF_MISCELLANIA);
+				break;
 			default:
 				return;
 		}