...
Image width/height in pixels, file name, file type (JPEG or PNG), image quality and whether to include annotations can be set in the download dialog.
User Preferences
User Users can modify change the default preferences as they need. They such as layout, keyboard shortcuts, etc. based on their needs. The user preferences are persisted even after the session is closed. "Preferences" button is used to display all show the user preferences dialog.
For better understanding of user preferences, refer to User Preferences
...