Cross Reference: /frameworks/base/tools/layoutlib/bridge/resources/bars/mdpi

`Name`	`Date`	`Size`
Up to higher level directory
`ic_sysbar_back_default.png`	10-Jul-2012	`782`
`ic_sysbar_home_default.png`	10-Jul-2012	`695`
`ic_sysbar_recent_default.png`	10-Jul-2012	`534`
`stat_sys_wifi_signal_4_fully.png`	10-Jul-2012	`885`
`status_bar_background.9.png`	10-Jul-2012	`204`

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