Optionalalign_Template id string, or { "ref", "atom_map"?, "min_atoms"? }.
OptionalcolorOptionalcxsmilesOptionalhaloOptionalidOptionallabelCaption: [Label] (string id, list, or {id, pos?} — text-node refs).
pos on a placement chooses caption side (above/below/left/right);
hosts measure the resolved text and fold that into node size for layout.
OptionalmolfileOptionaloptsCascade patches for this node (list or singleton).
OptionalscaleOptionalshadeShade scores (+ legacy window); window also cascades via [Opts].
OptionalsmilesOptionalstar_Optionalweight
Mol node — [
MolOpts] fields + non-cascading identity / scores / align.