Numbers, the spreadsheet application in Apple’s new iLife ’08 suite, introduces a new form of secondary highlighting to convey relationships between selected items. Selected items are shown in the Sheets list in dark blue against the current sheet’s mid-range blue, but select a chart and you’ll see the source table for that chart highlighted with a lighter blue. It’s elegant and effective, but a little hard to describe.
So let’s see it in action.
Create an empty Numbers document and the Sheets list appears on the left, the current sheet indicated with a mid-range blue background.
Add a stacked column chart, and a new table and chart appear, both displaying sample data. Select the table, and you see it highlighted on the left in a dark blue. 

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