Changing colour of Featured Content text on Full Frame

Hi! I’ve started using the free version of Full Frame on the following website: http://www.broentilframtiden.com I’d really like to change the grey colour of the text for Featured Content – i.e. Featured Page Titles, and also Headlines and Sub-Headlines, if possible – to black. I’ve found an earlier post regarding a different theme and the code required to do this, but it didn’t seem to work on Full Frame. Does anyone know the correct code? Best wishes, Aled Dilwyn Fisher