Lightsaber colors

Why: Unless there is some reason why a Jedi is restricted to the colors green and blue in their lightsabers, I think some sabers should be changed to other colors, or maybe just the color yellow. Yellow would make the ignition of the many lightsabers in the arena look much more spectacular, while at the same time keeping the lightsaber colors fairly limited, but more diverse at the same time. Adding yellow to the spectrum would also please a lot of “Knights of the Old Republic” fans. Also, it was always thought that the Jedi Master Plo Koon wielded a yellow lightsaber.

How: Change a few of the lightsabers to yellow or other colors with CGI.