As I have eluded to in the past, I am a huge fan of the SemWare Editor or TSE Pro for short. The icon I used on the linked post was a homemade upscale of the original icon you can find on the SemWare website.
Since it probably benefits the community more to have the source file for the icon, you can find that for download here.
It is an Affinity Designer file that contains the vector-based redo. Perhaps someone has some practical use for it (i.e. shortcut icons, website banners or whatnot).