This is a picture of a paper with a space on top where the title would be. In the middle of the paper is four lines that are spaced apart, showing writing probably. It seems to be an outline of sorts.
This is a Outline 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.