Additional icon to file icon

Question

Yandex.Disk

Hello! Many of us work with systems like Dropbox, Yandex.Disk and others. And those who use Tortoise clients have probably noticed that a check mark or some other icon is added to the file icon, symbolizing the status of this file. There was a need for the same feature, but I can’t find its implementation. Why are there implementations, I don’t even really know what this thing can be called. Therefore, I ask for help in this matter.

Answer 1

msdn.microsoft.com/en-us/library/cc144123%28v=vs.8...
Look for overlay icon like dropbox