$wgPageImagesNamespaces refers to the PageImages extension parameter that reffers to an array of namespaces where the extension will be active.
The default is just the main namespace, and because a lot of namespaces are and will be made regarding the shows in my wiki (Objectshowpedia/Database name: objectshowwiki), I would like to get help about the namespaces where PageImages is allowed to function, more specifically, updating the list of namespaces.