Reduce the width of border circles of avatar images

[kmyk]

Would you reduce the width of border circles of avatar images?

For example, in the below picture, the avatar icon of the leftmost person is surrounded by a thick colored circle. It consumes almost 33% of the radius and make the avatar image smaller. It seems a donuts chart about programming languages, but I think that what languages are used is not so important. The avatar icons are essential, since this is a tool of hall-of-fame. So I want it to become thinner.