Last Update: 7/8/2018
Note: In older versions, the dialog that opens has no tabs, and the drop-down is named Background.
In some graph templates shipped with Origin, a red rectangle is drawn around the legend entry for the active dataset. Various operations such as curve fitting pick up the active dataset by default. Some users find it helpful to have this red box present within the legend. The red box will not be included in your graph export.
If you wish to turn off the red box, do the following:
In Origin 2018 and newer
In Origin 2017 and older
Keywords:red box, red square, active dataset