With the upgrade to Backlight 3, I took the time to refresh my site a bit. One of the most obvious changes is the switch to a dark theme:
Summary of customizations
- Dark theme
- Updated Backlight search page to include blog search results
- Separate tabs for photos, albums and blog search results
- Added logo in top palette that is revealed upon scrolling
- Added breadcrumbs to all non album and album-set pages (How to link)
- Custom footer with links to latest blog posts (How to link)
- Modified menu to show sub-menu when page is on a sub-menu
- Custom slideshow on Backlight gallery pages so I can have the regular gallery view with a little slideshow to provide more content (Example, how to link)
- Customized single-page view (Example)
- Keyboard support on single-page view (How to link)
- Jump to top link in top palette
All this and more at DanielLeu.com.
Coming soon, or eventually 
- Use Backlight gallery images in blog posts including buy button
- Theme switching
All my customization use the phplugins API, custom CSS, and/or javascript. Over on lab.danielleu.com I post regularly about Backlight customizations. Follow my dedicated RSS feed for the latests posts.
If there is a subject you’d like to be addressed, please let me know.
Cheers, Daniel
Backlight Tips&Tricks: lab.DanielLeu.com
DanielLeu.com | @danielleuphoto