public override bool IsAlwaysNormalized(NormalizationForm form)
{
// Latin-1 contains precomposed characters, so normal for Form C.
// Since some are composed, not normal for D & KD.
// Also some letters like 0x00A8 (spacing diarisis) have compatibility decompositions, so false for KD & KC.
// Only true for form C.
return (form == NormalizationForm.FormC);
}