Theming overview

I am using Thank you, Roy theme and I am looking for any documentation on making theme changes beyond the administration/configuration for it.
For example, I want to change the home page, add a top hero image, change the layout of the homepage items etc…

If anyone has any guidance that would appreciated.

Hi, @susantr. You’ll want the theming section of our developer documentation.

For Thanks, Roy, it looks like your specific changes will happen in common/header.php for the global header and index.php for the homepage-specific content.