I find the default white of the comments drowns out the white of the connectors. I like to use black(000000FF) for the main function comments and blue(0000FFFF) for the sub-functions since the connectors are so easy to see. Not only would I like to be able to change the default comment colors in the project settings, but also be able to select between them with a single click the Details panel. It would quicken my organization just that much more.