I am building a theme for a user who prefers to use galleries as a way to quickly upload a bulk of photos to her blog, but I can't seem to figure out how to make it display the full size images in the post instead of thumbnails.
The thumbs are square crops of the original images, and usually at a smaller size. I would prefer to have full crops of the images shown in the post if at all possible. I have seen some ways to do it while editing the gallery.php file, but I would prefer to do these inside the theme folder, probably in functions.php. I'm just not sure what functions I need to be using :/