Codex of Power Icons – Before and After
The Codex of Power always had a rather bland look; all the icons were the same, no matter the class or the aspect. There was no visual way to distinguish different legendary aspects outside of their names.
However, during the current Season 5 PTR, we noticed that all legendary aspects registered in the Codex now have different icons! As you can see in the second image below.
Before (Season 4)
After (Season 5)
A specific icon now identifies each legendary aspect, representing the aspect’s power. For example, the 
Aspect of Arrow Storms for Rogues now shows a cloud of arrows raining down. This gives a clearer picture of the many aspects and their powers!
And, while it is not the most important change for Season 5, it is still a noteworthy update and well-appreciated, as it makes the Codex of Power easier to read! This will make it easier for everyone to navigate the codex and find a specific aspect.
Elixir of Antivenin on the PTR
On another topic, Blizzard has spiced up the PTR with a special treat: the 
Elixir of Antivenin has been made available to all characters on the PTR and should help with testing!
Normally, you would have to go on a quest to unlock this flask, but the PTR simplifies things: you can craft it directly at the Alchemist. What is exciting about the Elixir of Antivenin is the 15% life boost!