fz method
Font size with clamp and accessibility support (matches .fz)
Implementation
double fz(double value) {
final g = responsiveData;
double size = value * g.scaleFactor;
if (g.config.respectTextScaleFactor) {
size *= g.textScaleFactor;
}
return size.clamp(g.config.minFontSize, g.config.maxFontSize);
}