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

`Name`	`Date`	`Size`
Up to higher level directory
`ic_sysbar_back_default.png`	17-Dec-2011	`1.3K`
`ic_sysbar_home_default.png`	17-Dec-2011	`1K`
`ic_sysbar_recent_default.png`	17-Dec-2011	`644`