Documentation
Layout controls
Control container sizing, flow, and resizing.
Container rules
Use horizontal or vertical auto layout, with gap, padding, and alignment. Configure child sizing and min/max limits where offered. Nested containers can have separate layout settings.
Child rules
Hug follows content, Fill uses available space, and Fixed keeps explicit dimensions. Absolute positioning removes a child from normal flow. Available controls depend on the layer and its parent.
Pins and resizing
Advanced constraints expose applicable edge pins and width/height stretch controls. Resize the parent to check behavior. Changing frame bounds and scaling contents are different operations; choose deliberately.

