Snapchat has (finally!) completely killed off the white frame around snaps not captured with its own camera. The app's latest version drops the border when you add Snaps from the Camera Roll to ...

You can add a border to the image in Microsoft PowerPoint and PowerPoint Online. Add a black, dotted, white frame, etc. using this guide.

With the latest update, that white border disappears. Instead, like images shared from Snapchat Memories, uploads appear with a Camera Roll designation at the top instead of that white frame.