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

`Name`	`Date`	`Size`
Up to higher level directory
`icon-web.png`	21-Aug-2018	`76.6K`
`main-notification.png`	21-Aug-2018	`176.8K`
`notification.png`	21-Aug-2018	`175.9K`