Add or change your cover image in News Publisher
Your cover image appears in the Discover view in News, and it can be either dynamic or static. A dynamic image is taken from your channel content and changes automatically from time to time. A static image is one you upload; it doesn’t change unless you upload a different image. News Publisher uses a dynamic image by default.
Go to icloud.com, sign in, then click News Publisher.
Go to Settings > Branding > Cover Image.
Choose Dynamic or Static.
If you chose Static, drag an image to the field.
You can also click Replace, navigate to the image, then add it.
Important: For your cover image to appear in News, it must adhere to the cover image specifications.