The reflection-driven column builder turned every public property into a
column, so each {Column}Tooltip companion (NameTooltip, FlagsTooltip,
...) rendered as its own raw column next to the column it describes. That
text is already surfaced as the sibling cell's hover tooltip by
MetadataCellTooltip, which reflects the property off the row directly, so
dropping these properties from the column set leaves the tooltips intact
and removes the duplicate columns.
Assisted-by: Claude:claude-opus-4-8:Claude Code
Siegfried Pammer