Yes, i think it's normal. Now they're using a keyless system, in fact the modules are linked to your ED account. No need for keys if bought from ED store. :)
1st image (top left): radar in day mode during the day.
2nd image (top right): radar in night mode during the day.
3rd image (bottom left): radar in night mode during the night.
4th image (bottom right): radar in night mode during the night BUT with a light source (flashlight) illuminating it.
Correct? :)
Already been asked and the answer was:
Related to that there's Firmek's post:
Here's the original thread: https://forums.eagle.ru/showthread.php?t=183372&page=19