This is a FB2 icon. We've made it in iOS style, first introduced in iOS version 7 and supported in all later releases up until now (at least iOS 11). This style is based on thin two-pixel lines and is optimized for 50x50 px. Unlike other vector icon packs that have merely hundreds of icons, this icon pack contains 12,800 icons, all in the same style and quality.
This particular icon features a square with rounded edges on the left side. There is a curved line that runs from the bottom of the square and underneath it. On the square is the letter F, B and the number 2.
Related to FB2 Icon
Related icons are the icons with matching tags, as well as all files icons. All icons are in the same flat style. You can either download free PNG icons or buy SVG vectors