src/main/java/net/banutama/utamacraft/item/ModItems.java

@@ -11,6 +11,9 @@ public class ModItems {
     public static final DeferredRegister<Item> ITEMS =
             DeferredRegister.create(ForgeRegistries.ITEMS, Utamacraft.MOD_ID);
 
+    public static final RegistryObject<Item> LOGO = ITEMS.register("utamacraft_logo",
+            () -> new Item(new Item.Properties()));
+
     public static void register(IEventBus eventBus) {
         ITEMS.register(eventBus);
     }

src/main/resources/assets/utamacraft/lang/en_us.json

@@ -1,4 +1,6 @@
 {
+  "item.utamacraft.utamacraft_logo": "Utamacraft",
+  "itemGroup.utamacraft_tab": "Utamacraft",
   "block.utamacraft.ethereal_glass": "Ethereal Glass",
   "tooltip.utamacraft.ethereal_glass": "Glass that is not solid to players"
 }

src/main/resources/assets/utamacraft/models/item/utamacraft_logo.json

@@ -0,0 +1,6 @@
+{
+  "parent": "item/generated",
+  "textures": {
+    "layer0": "utamacraft:item/utamacraft_logo"
+  }
+}