I'm looking for design guidelines for Android Wear 2.0 apps that contain metrics and keylines: standard margins, paddings, font/icon/button sizes and etc. Basically this but for watch apps.
In official specification I can only find font sizes but nothing else. Have Google ever published this kind of stuff? Or maybe someone have reverse-engineered this from official Google apps?
I wanted to write this post as comment but there are lots of words.
In my expirience, this is hardly difficult to find suggestions about android.wear 20. Wearable devices are not so popular nowadays. So, the companies do not want to update guidelines, etc. Futhermore, 2.0 are not very popular. I really do not think that the major concepts have been changes exapt the link in the author post.
Obviously, I just would suggest https://developer.android.com/training/building-wearables.html and https://developer.android.com/design/wear/index.html