The anchor cell itself (styling source for the overlay renderer).
The anchor cell's coordinates (sheet-local).
The formula's references as scoped ranges — every slot carries an explicit scope (implicit
same-sheet references are stamped with this sheet's name, mirroring the editor's parsed.ranges)
so per-pane consumers can filter without guessing. A slot is null when that reference can't
resolve to a range (#REF!, a dangling name) — it must survive so later indices keep their
color/token alignment.
The formula's tokens (resilient tokenizer over getFormulaText()), index-aligned with
ranges via each token's referenceIndex.
The formula-view anchor: the selection anchor's formula, tokenized, when the view is showing formulas.
nullwhenever there is nothing to spotlight (not in formula view, anchor isn't a formula cell, or the formula fails to tokenize).