The Sidious saber is purplelish on the outer parts and chrome on the iner parts, i can confirm this because i saw one of the actual prop at C3, i can also confirm from C3 that Master Replicas version of Palpi's saber is nearly identical to the actual prop, in the pic below i have palpi from the movie on the left and Master Replicas prop replica on the right, as you you can see in one of the pics Palpi doesnt even use his saber in most of the Windu fight, he uses Anakins, i think this is product of a scene that was cut, because originaly Anakin was watching the hole fight, they should of reshot the hole fight and palpi should never of ever used two hands on his lightsaber. 😮