Idea of Closed Topic Icon
This icon is a circular speech bubble, with a curved point at its bottom coming from the bottom left. Inside the speech bubble is an icon of a lock, which is a small rectangle with a hole in the middle and a curved line on top.
This is the Closed Topic 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.