Towards the bottom left of the preview is a zoom menu. When you first open the chroma studio, you will see all of your connected devices on the workspace preview. If chroma is missing, it can be installed through the “Modules” tab at the top of the software. The chroma module should be active in Razer Synapse by default.
Chroma is used to create custom lighting effects for connected Razer devices. Razer Chroma Studio is the lightning module inside of the Synapse software.