Standard

# item config example
item:
  material: GOLD_INGOT
  custom-model-data: 12
  amount: 1
  name: '&aExample'
  lore:
    - '&fLine1'
    - '&fLine2'

Material

The material field can be any name present in the list corresponding to your Minecraft version.

For example:

• https://helpch.at/docs/1.20/org/bukkit/Material.html - for 1.20

• https://helpch.at/docs/1.8.8/org/bukkit/Material.html - for 1.8.8

For items that exist on legacy versions (that have IDs visible if you do F3+H) you can directly use their ID. You can even combine the approach and have materials like wool:5 or STAINED_GLASS_PANE:3.

Custom Model Data

For versions that support it, set a custom model data to the item.

Amount

A number between 1 and maximum stack size, depending on the use case 0 might also work.

Name & Lore

Simple strings that can be colored and depending on the use case contain placeholders that are usually signaled via comments or require PlaceholderAPI.