Highlight empty fields in color

[Hema_Nithya]

How to highlight empty fields in the dashboard in colours . Simple step pls 

[bowesmana]

What is the visualisation you are using in the dashboard?

[Hema_Nithya]

Dashboard, with search query which produces output table format.

[bowesmana]

Add the following format statement to your XML

<format type="color" field="Status">
  <colorPalette type="expression">case(match(value, "^$$"), "#FF00FF")/colorPalette>
</format>

and change the field name to your field and the colour value (#FF00FF) to the one colour you want