The icon is a picture of the logo for Beanie. The icon honestly looks a lot like Santa's hat. The icon is basically an outdoor snow cap facing upwright, with a tiny ball on the end like a bunnies tail.
This is a Beanie 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.