The Nintendo Switch’s Pro Controller is semi transparent, you can kind of see inside of the controller itself. You would think this would be easier to see but it’s not and its kind of cool this special message is in the controller. People on social media recently discovered that directly above the right stick, you should see a message that reads “thnx2 allgamefans!,”.
Here is a close up of the image.
This is definitely a cool shout out to gamers from Nintendo! I would not have seen that if these fine folks at Reddit haven’t pointed it out!