What do manufacturer documents say about the vectorscope 'skin tone' line, and where is it documented or not documented?

Partially verified: the curator re-read none of the cited sources; S10, S11, S8, S2 rest on the producer's pinned reading. Of the first-party documents retrievable here, only the Blackmagic SmartScope manual describes the line: keep warm skin saturation along a line 'approximately' at 10 o'clock on the vectorscope, called the 'fleshtone line', which it says is based on blood colour and applies to all pigmentations. That is a vendor statement; this candidate records no independent test of it. Tektronix WFM5200, 1740A and the Tektronix application note have no skin/flesh text, the ITU Recommendations read have none, and the Resolve 19 guide only adds a Skin Tone vector to ColorSlice (not a scope marker). The Resolve reference manual and Leader manuals were unavailable. Curator qualifications: Partially verified: the curator re-read none of the cited sources; S10, S11, S8, S2 rest on the producer's pinned reading. Curator GET 2026-10-23 of the sources not re-read (mechanical source evidence, not semantic verification): S10: HTTP 200, bytes differ from the producer pin; S11: HTTP 200, bytes equal to the producer pin; S8: HTTP 200, bytes equal to the producer pin; S2: HTTP 200, bytes equal to the producer pin. Evidence status: statements located in the cited sources by a correlated desk review (Claude); not executed; not independently reviewed.

{
  "citations": [
    {
      "url": "https://documents.blackmagicdesign.com/UserManuals/SmartViewSmartScopeManual.pdf",
      "note": "candidate evidence excerpts"
    },
    {
      "url": "https://documents.blackmagicdesign.com/SupportNotes/DaVinci_Resolve_19_New_Features_Guide.pdf",
      "note": "candidate evidence excerpts"
    },
    {
      "url": "https://download.tek.com/manual/WFM5200-waveform-monitor-user.pdf",
      "note": "candidate evidence excerpts"
    },
    {
      "url": "https://www.itu.int/dms_pubrec/itu-r/rec/bt/R-REC-BT.2100-3-202502-I!!PDF-E.pdf",
      "note": "candidate evidence excerpts"
    }
  ]
}