Idea of High Importance Icon
It is an exclamation point inside of a circle. Outside the circle there is another slightly larger circle just around it, creating almost a embossed or a three dimensional look.
This is a High Importance 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 13,900 icons, all in the same style and quality.