示例：添加「即将消逝的火」

src/main/java/org/teacon/nocaet/GarlicRegistry.java

@@ -7,6 +7,7 @@
 import net.minecraft.world.item.CreativeModeTab;
 import net.minecraft.world.item.Item;
 import net.minecraft.world.item.ItemStack;
+import net.minecraft.world.item.Rarity;
 import net.minecraft.world.level.block.Block;
 import net.minecraft.world.level.block.RotatedPillarBlock;
 import net.minecraft.world.level.block.SoundType;
@@ -79,5 +80,6 @@ private static void registerBuiltin() {
     }
 
     private static void registerFlames() {
+        ITEMS.register("fading_flame", ()-> new Item(new Item.Properties().tab(TAB).rarity(Rarity.UNCOMMON)));
     }
 }

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

@@ -9,6 +9,9 @@
   "block.nocaet.log_strip_light": "Lighted Log Strip",
   "block.nocaet.log_strip_shadow": "Shadowed Log Strip",
   "item.nocaet.elder_scroll": "Ancient Scroll",
+  "item.nocaet.fading_flame": "即将消逝的火",
+  "item.nocaet.fading_flame.clue": "前往初始之地寻求火焰吧。",
+  "item.nocaet.fading_flame.tooltip": "即将在风中消散的火焰，蕴含着微弱的力量，\n就算再微弱的火，也能点燃大树——\n所以，去收集更多的火焰吧。",
   "itemGroup.nocaet": "noCaeT",
   "nocaet.command.progress": "Set progress to %s",
   "nocaet.flame.tooltip": "TeaCon 2022 Collections",

src/main/resources/assets/nocaet/models/item/fading_flame.json

@@ -0,0 +1,6 @@
+{
+  "parent": "minecraft:item/generated",
+  "textures": {
+    "layer0": "nocaet:item/fading_flame"
+  }
+}

src/main/resources/data/nocaet/tags/items/flames.json

@@ -1,5 +1,6 @@
 {
   "replace": false,
   "values": [
+    "nocaet:fading_flame"
   ]
 }