It's a circle with a bow above it. The bow is pointing downwards and is wrapped around the circle about half way. It kind of looks like an eye with an eye brow.
This is a Tap Filled 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 13,100 icons, all in the same style and quality.