ForgePatch/src/generated/resources/data/minecraft/recipes/crimson_sign.json

{
  "type": "minecraft:crafting_shaped",
  "group": "sign",
  "pattern": [
    "###",
    "###",
    " X "
  ],
  "key": {
    "#": {
      "item": "minecraft:crimson_planks"
    },
    "X": {
      "tag": "forge:rods/wooden"
    }
  },
  "result": {
    "item": "minecraft:crimson_sign",
    "count": 3
  }
}