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How do I personalize notification tones for different apps?
Find settings in the app and tap on notification time.
You can change the led colour to your personal liking too.
Settings > Apps & Notifications > Configure Notifications
from what I can see there's no LED Color per app for notification like old-skool Sony.
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Sound notifications, now when you add a sound it saves... Back then it would just add a temp. As you see I didn't realize it and saved it multiple times. So you can now switch between a few sounds without re-searching for it in your folders.