[Flutter] Flutter TextStyle TextDecoration.lineThought Error

In flutter I got this widget

Container(
alignment: Alignment.centerLeft,
child: RichText(
maxLines: 1,
textAlign: TextAlign.center,
text: TextSpan(
children: [
TextSpan(
text: "$price€ ", style: const TextStyle(fontSize: 22)),
startingPrice != price
? TextSpan(
text: "$startingPrice€",
style: TextStyle(
fontSize:19,
decoration: TextDecoration.lineThrough,))
: const TextSpan()
]),
)),


and the result I get is this one



I tried different combinations of fontSizes and the line thought looks like it's moving up and down just a bit, but never in the center which is the desirable place.

The same up and down movement is happening if I add a height property in the Container and increase/decrease it.

Any thoughts?

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