A favicon pron.: // (short for Favorite icon), also known as a shortcut icon, Web site icon, URL icon, or bookmark icon, is a file containing one or more small icons, most commonly 16×16 pixels, associated with a particular Web site or Web page. A web designer can create such an icon and install it into a Web site (or Web page) by several means, and graphical web browsers will then make use of it.
3M, is favicon of blog 3M for Minimalism. The 3M is abbreviation of Minimal, Minimalist, Minimalism. Generally the Favicon designed in minimal style, clear and easy to remember.
Please try click the link bellow, Tks.