Cross Reference: /developers/build/prebuilts/gradle/DocumentCentricApps/screenshots

`Name`	`Date`	`Size`
Up to higher level directory
`1-activity.png`	06-Dec-2017	`169.2K`
`2-overview.png`	06-Dec-2017	`1.1M`
`big_icon.png`	06-Dec-2017	`63.5K`