Map Color Scale Properties Dialog Box, General
Select General on the Map Color Scale Properties dialog box to control the placement and format of the color scale.
Use a color scale to help a user understand how to interpret data intervals on a map layer that uses color to visualize analytical data. As an alternative, you can use a map legend to display the same information. For more information, see How to: Change Map Legends, Color Scale, and Associated Rules (Report Builder 3.0 and SSRS).
Click the Expression (fx) button to edit an expression that sets the value of the option.
Specify the location of the color scale in relation to the center of the viewport.
Show color scale outside the viewport
Select this option to display the color scale outside the viewport.
Specify the color for the border of the color scale.