Invalid leaf directive! `since`

Represents the basic and simplest implementation of a custom JeiCategory.For the script writers: you should never ever reference this class: use either a specific type or JeiCategory.For the mod developers: it is highly suggested to use this class as a base to implement a custom category, as it gets rid of most of the boilerplate and also provides a constructor that already follows the requirements outlined in JeiCategory.

This class was added by a mod with mod-id jeitweaker. 因此，如果要使用此功能，则需要安装此mod。

It might be required for you to import the package if you encounter any issues (like casting an Array), so better be safe than sorry and add the import at the very top of the file.

ZenScript
 Copy
import mods.jei.category.SimpleJeiCategory;

SimpleJeiCategory implements the following interfaces. That means all methods defined in these interfaces are also available in SimpleJeiCategory

• JeiCategory

名称	类型	可获得	可设置	描述
名称 background	类型 JeiDrawable	可获得 true	可设置 false	描述 Gets the JeiDrawable that serves as the background for recipes of this category.