The icon is a trapezoid shape and under the base are two horizontal lines one on top of another. At the top right and left of the trapezoid are two smaller rectangle shapes sticking out at both ends.
This is a Feed Paper 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 13,300 icons, all in the same style and quality.