I did that, changing the flash count to 2, because I still like to be alerted. Unfortunately, it still flashed continuously.

Thanks and yes, I agree. I did what you suggested and thankfully it made my problem a bit smaller.
My biggest problem by far is that I have my taskbar up on top and switched to invisible. If someone just sends me even a confirmation thumbs up the entire bar comes down and blocks the commands of the current programme.
So I first need to go the one hogging the focus, acknowledge the receipt and only hen can I continue working.
It’s annoying and a shame that I can no longer configure it. It used to be easy to switch off notifications, but today every programmer thinks his programme is incredibly important and requires immediate attention.
But thanks for your input.

The colour change remains, but you can get rid of the flashing, which I find more annoying than a continuously lit up task bar icon. You can achieve that if you follow the steps I outlined above. I don’t think it is possible to refine it any further.