As I was writing some documentation about how to customize the icons/labels of TS artifacts, I realized the API was missing an arg in one of the interface (Bug 220019)
This has no impact on the behavior at this stage but will be required as we make the icons/label context dependent (in 0.4 most likely).
Long story short, this change cascaded into a lot of spots. Make sure you update. The touched plugins are the following: