changing the color of visted hyperlinks in a text block

Hi - new to Storyline (converting from Captivate) and I'm wondering if there is a way to change the color of a hyperlink when it's been visited and the user returns to the page. The body text is black, the hyperlink is blue and I'd like the hyperlink to be a lighter blue when the user visits the link and returns to the page.

Do I need to build another layer with the hyperlink in the lighter color to show when the trigger (hyperlink) is clicked or is there an easier way? thanks!