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### 4.4.2.1 Object name colours

`nip2` changes the background colour of the row name button to show the state of the row. If background colours are not visible (perhaps your theme turns them off), try turning on the `Display LEDs in workspace` option in `Preferences`.

Green means the row is selected (click on the background to unselect), red indicates an error (right-click on the row button ans select `Recalculate` to see the full text of the error), brown indicates that the row value is out of date and needs recalculating and the various blues indicate parent and child relationships.