Topic on Extension talk:Title Icon

Would be a great feature if

{{#set:Title Icon=File.png}} 

worked in Namespace pages, e. g. defined in Project:File or {{#set:Title Icon=Event.png}} in a custom namespace, you could set it in Project:Event

Are you saying that, if a custom namespace named Event is created, that putting

{{#set:Title Icon:Event.png}}

on page Project:Event would display the title icon on all pages created in namespace Event? Is Project:<namespace name> a pre-defined page for custom (or other) namespaces?

yes, exactly. PageForms uses it to point red links of namespaces to a form: Extension:Page Forms/The "edit with form" tab#Based on namespace

OK, I was just talking to @Yaron Koren about how he implements this in Page Forms. This does seem like a reasonable thing to do, if you don't want to use categories. Out of curiosity, is there a reason you would prefer to use namespaces over categories for this?

Because this way you can simply add a nice title icon to the File:Namespace. Uploaded files usually don't get put into a separat category...

Excellent example. I will add this to my to do list.