Large Window Item
This item is one of the three possible items that start a GUI stack entry: GUIR Null, GUIR Small Window, and GUIR Large Window. This item acts as a container for the data within it; it also renders a large window onto the screen.
Type ID: 1
Datalength: 7+ byte
0: 5x5 icon [5 bytes] 5: zero-terminated title string [- bytes]