Cross Reference: /frameworks/base/tools/layoutlib/bridge/resources/bars/v19/mdpi

`Name`	`Date`	`Size`
Up to higher level directory
`ic_sysbar_back.png`	24-Aug-2016	`774`
`ic_sysbar_home.png`	24-Aug-2016	`836`
`ic_sysbar_recent.png`	24-Aug-2016	`591`
`stat_sys_wifi_signal_4_fully.png`	24-Aug-2016	`1.3K`

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