Slicer icons location

In which directory are all the icons located in Slicer? For example all the markup icons fiducial,ruler etc. icons. I was not able to find them in slicer.

Markups specific icons are here. To find other icons, you can look at the source code for the module and search for the icon filename.

I am using Slicer 4.11 stable version and couldn’t find the icons here.