I'm trying to create a child theme that will allow me to show post-thumbnails as the main image on the single page. I'm a little baffled about how to do it because the code in single.php is not familiar to me. I think I see it in the index.php file, but I'm not sure.
How would I do this?
I've also got a tiny white line on the right side of the main image on the home page that I can't seem to find the reason for. I am also having some trouble changing colors in the child theme stylesheet. I'm assuming they are generated programmatically in the document. How can I override them?