Photocrati 4.6 included enhanced and modern styling for the navigation, sidebar, footer and comments. If you would like to bring back some of the styling from previous versions of the Photocrati theme, you can use the CSS below.
To implement this on your website, read these instructions from the members area on how to safely add custom CSS to your website.
To summarize, this custom CSS can be added to: Theme Options >> Other Options > Custom CSS, anywhere on the stylesheet