Luminous Blue is a two column theme. It is fast loading with code that is easy to customize. Comes Slimbox ready for slick display of photos you have uploaded. Just add one of the following attributes to your anchor link: rel="lightbox" for single photos or rel="lightbox[group]" for a group of photos.
Transparency is also supported in older versions of Internet Explorer. If you don't like the idea of having extra code in the theme to support piece of junk IE, you can easily remove the fix from the index.php file. Happy blogging!