Nothing wrong in your cfg, Yogi. The command "Stay pressed!" can only be fired by macro.
Dorian mentioned this new command wouldn't work yet:
checkbutton("&Privacy Bar", "macros(Proxy_Toggle)", getpref(INT,$_Proxy_Type) == 0 ? true : false);
and to use the old one instead:
pluginmsg(toolbars,"CheckButton", "&Privacy Bar,macros(Proxy_
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