I've recently been tackling an interesting issue in theme park theory - the very notion of theme itself. Theme is what separates the theme park from the amusement park, and yet there are a number of issues surrounding it.
Most people think of theme as place and time; so Frontierland's theme is the Wild West, in the mid 19th century, whilst Fantasyland's theme is fairytale Europe, during medieval times. And yet Disney Imagineer Joe Rohde takes the viewpoint that Theme shares a definition with the literary idea of theme - the unifying subject or idea of a work, timeless and unifying ideas such as 'man versus nature', 'moral ambiguity' or 'perseverance'.
And yet despite Joe's arguement that you cannot 'theme' something (it isn't a verb), the popular consciousness has taken it very much that way. If someone holds a 'theme party', you're unlikely to spot costumes representing 'ambition', 'loyalty' or 'suffering' in favor of Superman, Fred Flintstone and a Jedi Knight.
So what word should be used to describe what is currently called theming? Perhaps setting? Main Street is set in a turn of the century American small town, rather than themed to it?
Does that mean it should be called a Setting Park?