There isn't anything automatic in FormsCentral but you can do it manually in about two steps.
Apply a "Filter" on the Response table to only show the rows that contain the desired response. Next you would select those rows and change the background color (in the text tools). Last you can clear the filter and you will have the desired rows highlighted.
Alternatively you could set up a rule in Excel and export the data from FormsCentral to an excel spreadsheet and view the data there.