I am trying to change how featured images are shown in summaries such as in archives or categories. But my theme, which is adventure-journal is making the the thumbnail the same dimensions as the header image.
I have a child theme.
I have tried to change the functions.php file but that is where I am getting stuck I think.
The original functions.php has the following code: To override ctx_adventurejournal_setup() in a child theme, add your own ctx_adventurejournal_setup to your child theme's functions.php file.
That is where I am stumped. I'm not sure what I am supposed to do.
Here is an example of how the thumbnails are currently presented: http://www.gratitudeseekers.com/2013/11/ (see the thumbnail on the post for Nov 18 called Buenos Aires)
Please help!