The Firewall Control Panel applet is displayed by Explorer running within your session. You just modify the process to direct the Firewall applet to another applet of your choice.
If you altered the explorer process so it pointed the firewall applet at a different control panel, you'd get a different UAC prompt (either the Orange unsigned one or the grey Signed by third party one), wheras the normal Firewall control panel generates
the Green/Blue Windows one. It's not perfect, but it's another layer of defense if you know what you are looking for.