When Live Caller ID first came out I experimented with it and got it working using the Example PIR database.
All my links from that time are now out of date and no longer work, however I seem to have found where the PIR database example and documentation has moved to (https://swiftpackageindex.com/apple/pir-service-example/main/documentation/pirservice/testinginstructionslivecalleridlookup)
But what I can't find is an exact definition of the the logo size/max size/dimensions/format should be.
My memory from that time is that it was very pernickety, and if things weren't exactly right, the logo wasn't displayed. I can remember the format had to be HEIC to get it to work. Looking through the documentation however, I can't see exact requirements specified.
My question is - for the Live Caller ID logo what are the exact image requirements, and where are they documented?