The itemgroup.json structure

Prerequisites

To understand whats following, ensure to have read the Content Pack Files Structure page.

All fresh new json are JsonObject file, there always starts with {}

Create your Creative Tab

Example

{
  "registryName": "my_tab", //mandatory
  "itemIcon": "minecraft:dirt", //mandatory
  "noTitle": false, //optional
  "hasSearchBar": true, //optional
  "hasScrollBar": false, //optional
  "backgroundImage" : "my_background.png" //optional
}

Values

registryName

Refer to an unique registry name for your item group
For uses in Blocks or Items, call it with your declared namespace in content.pack
Example: my_super_pack:my_tab

itemIcon

Use registry name of items or block to create an icon of your Creative Tab
minecraft:dirt or super_pack:my_block for example

Check blocks list on Minecraft Wiki

noTitle (boolean)

Show Creative Tab title ?
default: true

hasSearchBar (boolean)

Has a search bar on top of the Creative Tab ?
default: false

hasScrollBar (boolean)

Has a scroll bar to the right of the Creative Tab ?
default: false

backgroundImage

Warning

The background texture need to go in:
assets/content_pack_id/textures/gui/container/creative_inventory/
And the texture file need to start with tab_

Example

assets/super_pack/textures/gui/container/creative_inventory/tab_my_background.png

Vanilla Creative Tabs

List of Vanilla Creative Tabs

minecraft:blocks
minecraft:decoration
minecraft:redstone
minecraft:transportation
minecraft:food
minecraft:tools
minecraft:combat
minecraft:brewing
minecraft:misc