A favicon (short for favourite icon) is a 16x16 or 32x32 pixel graphic in the file type .ico. This is displayed in the address line of a web browser to the left of the URL and serves to identify the associated website in a recognizable way. Some older mobile devices may not be able to display a favicon larger than 4 kB. To create an .ico favicon, you can use one of the many «favicon generators» available on the web.
After «logging into Designer», follow these steps: