Clicking on the Properties button for a color legend will bring up the Legend Properties dialog. Note, if the data object is set to "One for the entire graph", then the properties dialog is not available.

On this dialog, you can access a number of useful tools for customizing the appearance of this graph legend.

•Reset legend title: if you've added a custom title for a legend, this will allow you to reset the legend title to the name of the associated variable

•Reverse legend order: change the order of the objects in the legend

•Labels font: change the font, size, color, and style of the legend labels

•Fill: add a custom fill to the bounding box of the legend

•Pattern: add a pattern fill to the bounding box of the legend

•Border: add a border to the bounding box of the legend