Yes, I will add an option to hide/show the tooltip.
It is just that the camera renders with a transparent background. To fix this nicely so that there is no transparency, open up ShotCamera.cs and in the “Validate” method, add cam.backgroundColor = Color.grey after line #180, like this:
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///...
cam.enabled=false;
cam.cameraType=CameraType.Preview;
cam.backgroundColor=Color.grey;
///...
As far as the preview texture itself, it is already sized to be the same aspect ration as the Game window is by the way.
Let me know if the above works for you. I will keep this change for the next version since it seems convenient 🙂