We've released an update to Test Gear as version 2.5.5, resolving an issue with After Effects 2015.3 on the Mac.
This update resolves a crashing issue when launching the Test Gear Color Picker. This only occurred on Mac systems; no update to the Windows version of Test Gear is needed.
You can download the latest installer and update your system using your current Test Gear 2.5 serial number.