Warm LED downlights in many Kuala Lumpur tower rooms wash pastel legends into the wall. Soft grey for “prior year” looks elegant on a laptop and disappears on the screen.
What we do instead
Reserve high-chroma yellow or red for the series under discussion. Push comparison series to a solid blue or ink outline. Test the board with the room’s actual projector — not the conference tablet — before rehearsal day.
A quick drill
Stand at the back row. If you cannot name the series in three seconds, rewrite the legend. Facilitators thank you when an executive points at a bar and asks “which one is that?” and the answer is already readable.