Alignment of square layout

Hi, thanks for the awesome meow plugins, really awesome what is possible with the gallery shortcodes and code snippets options!
I have a question regarding the square layout: I was trying to center the layout with the shortcode align=”center” or align=”wide”, however i think after the last image in a row the setted gutter is added, which makes a central layout of the gallery practicably impossible. This gets especially distinct on the mobile version of the website.
Is this intended or how could i change that?

The page I need help with: [log in to see the link]