Summary. Some dark siders can conceal their appearance with the Force, hiding physical signs of corruption like yellow eyes and aged features. Palpatine's yellow Sith eyes may have been hidden through a dark side illusion, potentially masking his true form from the Jedi.
Some believe this is part of the evidence for the Force Mask theory. Although, it's probably because all Sith's eyes turn yellow through the Dark Side of the Force, in which Palpatine released when using Force Lightning. He WAS a former Jedi.
More adept Sith like Palpatine can also hide their yellow eyes by controlling their emotions. He was obviously never going to use the dark side when in public as the Chancellor, so his eyes stayed blue there.
called force clouding. It was a cloaking technique that the Sith used. to conceal themselves from other force users. by pulling their powers inward. It basically created an illusion, allowing the Sith masters and apprentices. to go out in public and interact with Jedi.
3 Deleted Scenes LITERALLY CHANGE how Anakin Became Vader
Why didn't Yoda know Palpatine was Sith?
Palpatine used his powers to hide his true nature from the Jedi, utilizing Force Concealment to completely hide his presence in the Force while clouding the Force for the Jedi. The Clone Wars also kept the Jedi busy and weakened, preventing them from realizing his true identity.
However, joining the Sith means declaring loyalty to the dark side, which Anakin did before his eyes turned yellow. This may explain why Kylo Ren, torn between the light and dark, didn't have yellow eyes in the Star Wars sequel trilogy, as killing his father split his spirit even more.
Sith eyes are from fully embracing the darkside. Dooku was a weak Sith in that he wasn't fully immersed in the Dark. Kind of like Ventress. That is why neither had permanent eye change.
The most agreed upon theory, started by Reddit user Lumparoo in 2016, is that Jar-Jar is a powerful Force-user conspiring with Darth Sidious. In addition to this, some believe he either trained, or was supposed to become Supreme Leader Snoke, or that he is a reincarnation of Darth Plagueis.
History. A dark side warrior with a mysterious past, Kylo Ren was neither Jedi nor Sith, but a product of both sides' teachings. Once an apprentice of Luke Skywalker's, he killed his fellow students and drove Skywalker into exile, becoming a First Order warlord and servant of Supreme Leader Snoke.
the reason for dooku's lack of yellow Sith. or dark side eyes is because for one to have Sith eyes, they have to be fully immersed in the dark side, or taken over by the dark, if you will. dooku often times was playing the part of a politician, not a Sith Lord, so he doesn't have those burning.
Since he was in the presence of someone he loves, Anakin was no longer channeling the dark side emotions that fueled his assault on the Separatists. As for why his eyes weren't yellow during the march on the Jedi Temple, that could be attributed to inner conflict about his actions.
In Revenge of the Sith, we see Darth Sidious seemingly deformed by his own deflected Force lighting. Right off the bat, this is by far the most popular and likely explanation for his appearance.
Indeed he did. Dooku (aka Darth Tyrannus) knew his master's identity. At this point the Jedi thought Dooku was the Sith Master. The kidnapping was planned to reinforce public support for Palpatine while further confusing the Jedi about his true identity.
Sidious may have given Dooku the title of Darth Tyranus, but because the Jedi Order knew him as Count Dooku, greatly preferring to not indulge his role as a Sith, they continued to call him by that name.
After his reincarnation, Darth Sidious aka Palpatine used a blue-bladed lightsaber when he fought Luke onboard his Super Star Destroyer Eclipse. Ultimately, Sith who wielded colors other than red were usually looking to disguise their dark affiliations.
Born on the planet Hyperkarn in 15 ABY, Rey Palpatine was the daughter of Dathan and Miramir. While their names were lost to history, Rey's father was the cloned son—an artificial genetic strandcast—of the resurrected Darth Sidious, making her the granddaughter of the fallen Galactic Emperor and Dark Lord of the Sith.
Star Wars: The Visual Encyclopedia says that as "windows to the soul, eyes reflect the emotions harnessed by the Sith. When rage and anger seethe inside a dark side user, their eyes may burn yellow with a fiery-red rim." What that means is a Sith's emotions will be shown through their eyes.
As the Death Star had been destroyed, and the Battle of Yavin had finally taken place, the years then moved into ABY (After the Battle of Yavin). It's said that Star Wars: Return of the Jedi takes place during 4 ABY, meaning Palpatine was 88 when he met his original end.
Palpatine carried the lightsaber for a great deal of his life afterward, though he only rarely wielded it in combat, as his position as Emperor made battles with other Force-users few and far between, and he preferred to rely on his raw ability with the Force in any case.
