Mac Desktop app icon doesn't really match style of other Mac appa

I'm not sure whether it has an inner and outer border around it, or whether it's smaller than others and the system pads it rather than enlarging it?

Start by locating the Mac desktop app icon assets and compare the reported icon with the other Mac app icons shown in the issue image. Determine whether the discrepancy is caused by the icon artwork or system padding; the work is done when the icon matches the surrounding Mac app icon style.

Written by the indexing model from the issue text.