The color of the Calculated Value needs to be set by using the Color Rules.
Follow these steps to apply a color to the Calculated Value:
1). Open the properties of the Calculated Value and go to the Values tab.
2). Use the button 'Add Rule...'.
3). Select 'Boolean expression', Click on the pen icon in the 'Value' box.
4). As the expression type true. Click OK.
5). Select the color you want. Click OK.
