Cross Reference: /frameworks/base/tools/layoutlib/bridge/resources/bars/v21/xxhdpi

`Name`	`Date`	`Size`
Up to higher level directory
`ic_sysbar_back.png`	05-Oct-2017	`1.2K`
`ic_sysbar_home.png`	05-Oct-2017	`2.1K`
`ic_sysbar_recent.png`	05-Oct-2017	`573`
`stat_sys_battery_100.png`	05-Oct-2017	`18.9K`