The name of the topic can be changed both in the extension and the Dashboard.
Change the topic name from the extension
Open the Extension and find the Topic you want to rename.
Click the pencil icon next to the Topic name, or simply double-click on the name once the Topic is open.
Type the new name and click the checkmark to save the changes.
Change the Topic name on the Dashboard
On your Dashboard, find the Topic you want to rename.
Click on the Topic name to start editing.
Type the new name.
Press Enter to save it.