    use unicode_normalization::UnicodeNormalization;
    let mut result = Vec::new();
    let v_metrics = font.v_metrics(scale);
    let advance_height = v_metrics.ascent - v_metrics.descent + v_metrics.line_gap;
    let mut caret = point(0.0, v_metrics.ascent);
    let mut last_glyph_id = None;
    for c in text.nfc() {