You can of course add checks within the pages.php theme page to render certain pages with a different layout / different css using the object model. Checks like if($_zp_current_zenpage_page->getTitlelink() == "" { do something } else { do something else }
or if you want quite a lot different layout use the switch() function for that.
You can also use normal other custom pages if you pass the titlelink of a page. Using the object model you basically can call a page where ever you want. However that would be outside the normal Zenpage context then.
Thanks @acrylian!
However, I was thinking of someting else.
Say you make a new custum theme page with a different layout.
(different from pages.php)
And then in in the admin -> pages you could choose in which page your content would be displayed.
Just thinking out loud :-)
Hm, you can do that actually you just have to pass the titlelink to that page and create a page object. You will however get a different url like zenphoto/page//. You probably could even create a custom option for this.
I think if we would do such a feature it would/should be like the album themes to stay on one kind of behaviour for all items.
I would have at least an idea how to do this similar to your first idea (e.g. using pages.php as a wrapper to load other theme pages).
That could automatically load a script page with for example the name pages-.php if it exists. But I see that a selector might be more convenient for reusing layouts, I think that might be possible as a plugin (but will require the theme to be setup correctly).
If you like sent an e-mail.
Probably you can do this already by creating a filter attached to the load_theme_script filter.
This filter is applied just prior to loading the script from the theme for the particular object. Your filter would check to see if it is loading a page and substitute a different script name for the one passed.