Change in Dual Sim Settings

I have a suggestion for Dual Sim Settings in iPhone. I am using iPhone 13 from 1 year and using Dual Sim From Nov 2022. I have noticed 2 things

1. There is a normal letter given to Sim cards. Instead of that we can have an option to assign a different color to SIM so whenever we get a call from a particular SIM we can identify easily rather than checking that small letter. Its so small sometimes cannot see properly.
2. When I use iMessage it is showing me that to choose either line A or Line B to filter my messages. Selecting Both Lines are showing all messages but then also there is no notification on the top or bottom as from which SIM I have received that message. What I have to do is tap on top of the contact and it shows which Conversation Line has received a message. To my suggestion we can add the Conversation Line right in front of the message so we can identify from which Conversation Line has received a message.