heading text in flutter code example

Example 1: how to use theme style and textstyle together in flutter text widget

Theme.of(context)
.textTheme.display1
.merge(TextStyle(color: Colors.red)

Example 2: italic text flutter

Text(
  "Welcome to the present, we're running a real nation.",
  style: TextStyle(fontStyle: FontStyle.italic),
)

Example 3: flutter text wisget

const Text(
  this.data, {
  Key key,
  this.style,
  this.strutStyle,
  this.textAlign,
  this.textDirection,
  this.locale,
  this.softWrap,
  this.overflow,
  this.textScaleFactor,
  this.maxLines,
  this.semanticsLabel,
  this.textWidthBasis,
  this.textHeightBehavior,
}) : assert(
       data != null,
       'A non-null String must be provided to a Text widget.',
     ),
     textSpan = null,
     _applyTextScaleFactorToWidgetSpan = true,
     super(key: key);