The icon is shaped like a horizontal rectangle with an exclamation point at the center of it. The is another horizontal rectangle that is mostly hidden underneath the main rectangle shape.
This is a Answers 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 13,700 icons, all in the same style and quality.