Allow Doorbell to recognise logos

Can you add the feature for uniforms to be recognised? This could then prompt Alexa to say you have post if person visited the door with a Royal Mail logo on their clothing. Instead of just motion detected at the front door. I am sure this could apply to other scenarios.

This could perhaps be customised so that this only works at certain times in certain scenarios to avoid criminals wearing uniforms.

I know in the US you have mailboxes more commonly and you have separate device for that but in the UK for the most part we have letter boxes