This isn't really about functionality, but I noticed the gutter set for the entire photoset is applied to the bottom of the last row. While it makes sense to apply margin-bottom for every other row, having an extra margin below the last row looks off. I'd simply add some CSS code to remove the margin manually based on the gutter value I've picked to work with, but I have no way of knowing if someone will tweak the code to choose a different gutter value, neither do I know if they will edit the fix I've done myself for this extra margin. I believe it wouldn't be such a hard thing to implement, but I don't think editing the code myself and creating a new file to share with people is really practical, especially when they would look for the official support itself.
This isn't really about functionality, but I noticed the gutter set for the entire photoset is applied to the bottom of the last row. While it makes sense to apply margin-bottom for every other row, having an extra margin below the last row looks off. I'd simply add some CSS code to remove the margin manually based on the gutter value I've picked to work with, but I have no way of knowing if someone will tweak the code to choose a different gutter value, neither do I know if they will edit the fix I've done myself for this extra margin. I believe it wouldn't be such a hard thing to implement, but I don't think editing the code myself and creating a new file to share with people is really practical, especially when they would look for the official support itself.