Home Assistant gives Hue gradient lights a separate color control for each segment. Owners of compatible lights such as Play gradient lightstrips, Signe and Festavia can choose different colors along the light instead of setting only one color for the whole device.
The segment controls start hidden so room and device commands reach the main light rather than each color point separately. Owners can unhide them for dashboards. Brightness and power remain shared across the whole light, and scenes that change several segment colors send them to the Hue bridge together.