#figure(
  table(
    columns: 3,
    table.header([Element], [Requirement], [Location]),
    [Module name], [Mandatory], [Top lip],
    [Module mathematical function], [Recommended, when applicable], [Above row $1$],

    [Jack function], [Mandatory], [Above or beside jack],
    [Jack type], [Mandatory, color-coded jack], [At jack],
    [Signal flow], [Recommended, arrows or grouping], [As needed],
    [License], [Mandatory], [Below row $8$],
    [Version and tier], [Mandatory], [Bottom lip],
    [Module designer name or logo], [Optional], [Bottom lip],
    [Module builder name or logo], [Optional], [Bottom lip],
  ),
  caption: [Panels labelling requirements],
) <table-panels-labelling>