A few new icons were added to the Patch 10.1 PTR in this week’s build. These icons are mainly variations on the 10.1 upgrade system currency Flightstones as well as a new diablo-themed toy.
How the New 10.1 Gear Upgrade System Works
New Icons
New Flightstone Icon Uses
While most of these flightstone icons are used for item caches of Flightstones, some icons are used by certain crafting materials.
Obsidian Flightstone – Cache containing 100 Flightstones.