Throughout the High Republic, members of the Jedi Order can be seen wielding a wider variety of lightsaber colors outside just the standard blue and green lightsabers that we typically saw during the prequel era. Why is this? This was done to help highlight the differences between the Jedi of the High Republic versus the Jedi of the prequels. Unlike the prequel era Jedi, the Jedi Order during the High Republic was far less dogmatic and strict in their rules and how they operated. That flexibility is highlighted in the myriad of lightsaber colors that we see Jedi wield during the High Republic. Moreover, the High Republic has also done a great job of explaining that the Jedi during this time all interpreted the force differently. One Jedi may feel and sense the force like music while another interprets the force like the Russian Swallow of an Ocean. That diversity in how the Jedi interpreted the force during the High Republic is further exemplified in the wider array of lightsaber colors we see from them. Seeing a wider selection of lightsaber colors during the High Republic has been great and it's one of the myriad of examples that help showcase the differences of the High Republic Jedi versus the Jedi of the prequels.