Changing the legend backdrop

You can specify the background and outline for the legend.

Open this dialog by clicking Fill IM: Fill button in the analysis Map Control Editor.

FillSelect whether the legend will be in a coloured box.
GradientSpecify in what manner the coloured background changes from the first to the second colour.
Fill/From colourDefine the first colour (the centre for circle and rectangle gradients).
To colourDefine the second colour (edge colour for circle and rectangle gradient).
FrameDefine the outline style, colour and width of the legend box.