polkit: Translate pkla into (java script like) rule file

[c.buhtz at posteo.jp]

Hello,
I struggle to "translate" an old fashioned pkla file into the "new"
java script like rule format.

My solution works half. The creation of a color device now is allowed
in an XRDP session, as expected, but some other features now are
disabled. I am not able to shutdown the machine nor mount an usb device.

This is the old pkla

[Color Manager All Users]
Identity=unix-user:*
Action=org.freedesktop.color-manager.settings.modify.system;org.freedesktop.color-manager.create-device
ResultAny=no
ResultInactive=no
ResultActive=yes

This is the new rule

/* org.freedesktop.color-manager.create-device */
polkit.addRule(function(action, subject) {
    if (action.id == "org.freedesktop.color-manager.create-device") {
        return polkit.Result.YES;
    }
    return polkit.Result.NO;
});

I do understand that the reason for my problematic behavior is that the
else branch does return NO. But I don't know how to treat the else
branch the other way. I don't understand the big picture and how the
polkit systems does use that rule file.

Thanks in advance.
Christian Buhtz