When you enter Savi’s Workshop, you will be guided by the Gatherers, who will help you customize your lightsaber. You will choose a theme for your hilt and a kyber crystal for the color of your lightsaber blade. The Gatherers will provide the necessary parts for assembly, and once everyone has finished, the lightsabers will be placed in stabilization chambers and forged to their blades. You will then have the opportunity to activate your lightsaber.