You may access the Content Settings area by going to Flotheme -> Content Settings.

In this section you can adjust the content layout for the following areas:

If you need to change the width for your blog page, you can use the option at the top, entitled ‘Blog page – List view max width‘.

An interesting feature is the custom WordPress gallery shortcode layout. By enabling this option the layout and behavior for the default WP gallery shortcode will be overwritten.

And in case you don’t need the masonry script to work for the custom gallery short code (for example when you are using images of the same size), you have the option to disable that.