resolveFontVariant static method
Implementation
static String? resolveFontVariant(String? fontVariant) {
if (fontVariant == null) return null;
final String normalized = fontVariant.trim().toLowerCase();
if (!isValidFontVariantValue(normalized)) return null;
// Normalize whitespace.
return normalized.split(RegExp(r'\s+')).where((t) => t.isNotEmpty).join(' ');
}