Idea of Notification Icon
The icon is an outline of a bell. It is the normal bell shape with a small circle on the top. There is a slightly bigger circle at the bottom that is supposed to be partially inside the bell.
This is the Notification icon for Windows 10
. Here we go. Optimized for 32x32 px, these are the simplest icons in the line style. Downloadable formats are PNG and SVG, among others. Icons8 icon pack is unique in providing a huge number of icons designed by the same team of four designers who create the new icons every working day in the same style and with the same quality. Same cool as the Bat Face, huh.