StacTextSpan class

A Stac representation of an immutable span of text.

This class defines a piece of text with associated styling and optional child spans for rich text formatting.

{@tool snippet} Dart Example:

StacTextSpan(
  text: 'Hello ',
  style: StacTextStyle(fontWeight: StacFontWeight.bold),
  children: [
    StacTextSpan(text: 'World', style: StacTextStyle(color: StacColors.blue)),
  ],
)

{@end-tool}

{@tool snippet} JSON Example:

{
  "text": "Hello ",
  "style": {"fontWeight": "bold"},
  "children": [
    {"text": "World", "style": {"color": "#2196F3"}}
  ]
}

{@end-tool}