A yellow lightsaber is most commonly associated with the Jedi Sentinel, where the Sentinels form one of the three schools of the Jedi Order. Sentinels could be found in several distinct roles ...

In Star Wars Legends, there were different paths a Jedi could take, such as the role of Jedi Consular, Jedi Guardian, or Jedi Sentinel ... a kyber crystal for their lightsaber at Ilum.