AnchorNode
A positioner used to place a widget along the edge of its parents area
HAnchor
Positions a widget at the horizontal extent of its parent node.
- Example
WideGroup: !Group
    geometry: 400x20
    children:
        - !HAnchor:Text
            geometry: 50x20
            text: "I'm at the end"
VAnchor
Positions a widget at the vertical extent of its parent node.
You may also use the alias “anchor” to reference the vachor node.
- Example
TallGroup: !Group
    geometry: 40x200
    children:
        - !HAnchor:Text
            geometry: 50x20
            text: "I'm at the bottom"
AAnchor
Positions a widget to be in the lower right corner of its parent node.
- Example
BigGroup: !Group
    geometry: 400x400
    children:
        - !HAnchor:Text
            geometry: 50x20
            text: "I'm in the corner"