There have been a number of questions for removing the muted sidebar icons and replacing them with the older coloured versions. It's well documented that the coloured versions still happily exist and can be seen by simply looking in the Go menu of the finder app.
I want to do it the other way around. I want to find instances of the coloured icons, and replace those with the muted versions instead. The most obvious place for them to appear is in the header bar of finder windows, but there is the aforementioned go menu too.
How can I make all instance of a coloured finder icons for default home folder locations use the muted monochrome versions as seen in the sidebar by default?