Various bits of PHP / HTML to customize this theme. Add PHP to /custom/custom_functions.php unless otherwise noted.

PHP

1. Change the order of the gallery tag list from ASC to DESC

See this PHP code to add to /custom/custom_functions.php: https://gist.github.com/mahodder/472fd0ed83a48904a94c

2. Switch the blog featured image to be inside post content instead of above title

remove_action('genesis_before_post_title', 'genesis_do_post_image');
add_action('genesis_post_content', 'genesis_do_post_image');

You may also need to use CSS like:

.hentry .post-image {width: auto;}
img.alignright {float: right !important;}