Freedesktop-related

If you get the "authentication is required to create a color managed device" message

/etc/polkit-1/localauthority.conf.d/02-allow-colord.conf

polkit.addRule(function(action, subject) {
  if ((action.id == "org.freedesktop.color-manager.create-device" ||
       action.id == "org.freedesktop.color-manager.create-profile" ||
       action.id == "org.freedesktop.color-manager.delete-device" ||
       action.id == "org.freedesktop.color-manager.delete-profile" ||
       action.id == "org.freedesktop.color-manager.modify-device" ||
       action.id == "org.freedesktop.color-manager.modify-profile") &&
      subject.isInGroup("{users}")) {
    return polkit.Result.YES;
  }
});

Red Hat Enterprise Linux-related
Miscellanea
Debian
GRUB
systemd
Linux-based Terminal Servers
Working with Image Files

polkit

If you get the "authentication is required to create a color managed device" message

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