I am using the Renew Stack and started with the Renew Agency template. I noticed the Custom Headline on the About page and I am using it elsewhere in the site. I figured out it uses the class ‘h-custom-headline accent’ on the ‘Customize’ tab of the Headline element. What I want to do is to change the color of the accent line as shown here (green arrows pointing to line):
I tried to experiment with the code shown in this post: Change accent colors for whole website? but have not had any luck.
What Additional CSS code do I need to add in order to change the color of the accent line?