In Disney+'s most recent episode of Ahsoka, "Part Five: Shadow Warrior," audiences caught a glimpse of some very familiar iconography. Fans of Star Wars Rebels will have surely recognized the iconic symbol of Kanan Jarus resting comfortably upon his son Jacen Syndulla's shoulder. While this could be viewed as a simple callback to his father, the symbol itself means much more to those who knew and loved Kanan, as well as to the galaxy he helped save.
Source:https://www.cbr.com/ahsoka-jacen-syndulla-kanan-jarrus-shoulder-armor/