So I just noticed a bug. I’ll do my best to explain. The said bug is where your edits made through Theme park for modifying the notifications in notification panel doesn’t apply on notifications from the Phone app.

I’ll elaborate, I’m my case I had increased the transparency of notifications in the quick panel, this applies to all notifications that now look more transparent. However, notifications from the phone app such as a missed call notification or a ongoing call notification remain unchanged, my edits do not apply to them and they stand out from other notifications as they are not as transparent and look a sold grey colour.

It looks very odd that if you have a set of notifications and then a missed call notification, the latter looks odd and different from the bunch. I hope this is fixed, it’s a small issue but affects the overall user experience. I hope I was able to convey the issue, feel free to request me to explain further in the comments.