Cross Reference: /developers/samples/android/notification/LNotifications/screenshots

`Name`	`Date`	`Size`
Up to higher level directory
`1-headsup.png`	22-Oct-2020	`125.4K`
`2-visibility.png`	22-Oct-2020	`132.9K`
`3-others.png`	22-Oct-2020	`112.3K`
`icon-web.png`	22-Oct-2020	`84.4K`