Variable TEXT_HIGHLIGHT_COLORS`Const`

TEXT_HIGHLIGHT_COLORS: readonly [
    "#ffeb3b",
    "#8bc34a",
    "#4dd0e1",
    "#f48fb1",
    "#ffb74d",
    "#ce93d8",
] = ...

Pastel colors used by the default context menu's Highlight row. They are intentionally independent of the annotation-toolbar style.