When you are connected to the application, you can see the different apps you can use. You may see that some of them are shaded. If it is the gesture control or the rear camera icon, it is normal, they will be available when you will have those options for your Eyelights.
The Voice control icon is shaded if the Gesture control is not connected.
The rearview camera icon is shaded if it is not connected.
For the other applications that could be shaded, it is because they are not installed on your smartphone.