This doesn't work:
Patterns * ![Gmail]* “[Gmail]/Sent Mail” “[Gmail]/Starred” “[Gmail]/All Mail”
Step #1: Get the certificates
In my case the current git-Version did the job. It seems as there have been quite a few changes compared to 1.0.6. For sync with gmail accounts and using mutt as mail client, the option: Flatten "_" in .mbsyncrc helped a lot! It replaces the subfolders [Gmail]/.Trash etc. by [Gmail]_Trash. You can still use patterns as explained. Works perfectly, and in my case about 10x faster than offlineimap. As soon as I find the time I will go through all the documents about arch wiki and try add these remarks.