Absolutely. All interface elements of our gallery plugin could be easily customized in admin section of the gallery plugin. For example you can easily change layout of the thumbnails define background colors for the gallery / thumbnails background space or for the hover animation elements of the thumbnails.
Styles of the gallery lightbox could be easily changed. Gallery menu, navigation buttons, zoom and link buttons styles configuration implemented in admin section.
For the case if some interface elements of the gallery do not have configuration styles in admin block just contact support and we can guide you for the ways of the configurations or modification CSS styles to make gallery work the way you need.