When editing a Topic, you can customize the following attributes.

Topic context panel, Attributes tab. The Topic is called United States. The Identifier (United States) and Name (United States) fields are shown. The Status toggle is also shown and is set to Active. Below that, the Created At and Updated At fields are shown, each displaying a date. These two fields have a Lock icon and can't be edited.

Identifier

An identifier is a unique label assigned to the Topic.

Thumbnail Image 

Click within the thumbnail area to upload an image. 

Status

Set the status to Inactive if you want the Topic to be hidden from your learners.