Cross Reference: /development/samples/browseable/CustomNotifications/res/drawable-xhdpi

`Name`	`Date`	`Size`
Up to higher level directory
`ic_launcher.png`	05-Aug-2015	`7K`
`ic_stat_custom.png`	05-Aug-2015	`2.3K`
`robot.png`	05-Aug-2015	`5.4K`
`robot_expanded.png`	05-Aug-2015	`18K`