If you are using the Album’s standalone options and your galleries have their own URLs you might want to make some changes to that default template. For example if you want to make it full width please add this code in Appearance > Customize > Additional CSS:
.modula-gallery-template-default .entry-content-wrapper, .modula-gallery-template-default .entry-content { max-width: 100% !important; }For also make the gallery’s post title full width please use this code:
.modula-gallery-template-default .post .entry-content-header, .modula-gallery-template-default .post .entry-content-header .post-title { max-width: 100% !important; }