This is the Style menu of the Modals widget.
Modal
Horizontal alignment;
Vertical alignment;
Width of the popup;
Height of the popup;
Choose if extend the full window;
Padding;
Margin;
Typography;
Text color;
Background color;
Border Type;
Border Radius;
Box Shadow.
Close button
You can choose to activate the close button.
Close Type:
X;
Icon;
Image;
Text.