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A widget is a UI component such as the inventory window or item container window. A widget's layout is grid-based and contains child elements that either display information to the player (e.g. the player's health or description of a quest) or allow the player to interact with them (e.g. a button that triggers a script or a slot for placing an item into). Custom widgets can be created in the Widget Editor.
hide_widget("test"); $name = widget["test"].element["0001"].text; display_message("Hello, " + $name + "!")
This script will change the text of the button to now be “New Text”.
widget["test"].element["0002"].text = "New Text"