if {$dir eq [system mediaroot] || [file exists "$dir/.sweeper"]} {
    lappend icons [_addicon "/plugin/sweeper/img/icon22.png" "Sweeper Rules"]
}

if {[file exists "$dir/.nosweep"]} {
    lappend icons [_addicon "/plugin/sweeper/img/noicon22.png" "No-sweep"]
}