textHeightBehavior method
Defines how the paragraph will apply TextStyle.height to the ascent of the first line and descent of the last line
Equivalent:
Text(textHeightBehavior: input)
Implementation
NikuText textHeightBehavior(TextHeightBehavior textHeightBehavior) {
this._textHeightBehavior = textHeightBehavior;
return this;
}