Me being more theme oriented, is it possible to have a config file located in a theme folder that could override the theme related parameters set in the admin config settings? This way, a theme could be designed for a unique layout without the user having to change the setting in their configuration. As we've seen in some of the more narrower themes such as OrangeSky, Connections, Red Train and etc., having 5 thumbnails in the filmstrip or 5 or more thumbnails in the album display or "Show first level album thumbnails in categories" can either break these themes or distract from the designers layout intention. The groups of parameters in the admin config are Language & Charset settings, Themes settings, Album list view, Thumbnail view, Image view and obviously not all of the parameters in these groups would be accessible in this config file but only the ones needed to effect change in the theme.
Also in order to prevent confusion to a user when trying to make changes to a theme that uses one of these config files in the admin config , maybe a warning message to say that this theme uses a custom config file.
Cheers!