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.