Yahoo Mail Boxes

[The Mad Monk]

I use Yahoo Mail a fair bit. It has a series of mailboxes

Inbox
Unread
Spam
Archive
Junk
Drafts
Sent

and so on.

When these boxes are empty, it shows the most awful American political videos - always, it seems, American, frequently featuring Donald Trump.

Is there any way that I can change the content of these empty mail boxes?