All My Files is one of the most useful features in the Finder for my virtual dollar. It shows all files on your Mac, defaulting from newest to oldest. The setting for it is slightly hidden.

The brown box icon appears when a synced file has ‘Files On-Demand’ feature enabled and is yet not downloaded. To fix this, you should disable this feature in OneDrive and see if it works for you.

Apple makes it easy to change icons for files and folders on Mac. Here's how it works, along with tips on using images or changing the folder icon color.

Quick tip: If you don't see the My Files app, tap the Samsung icon with many smaller icons inside of it instead — My Files will be among them. 3. Inside the My Files app, tap Downloads.

But if you just want to make an image of the copied file's icon and not the file itself, you can do that too. All by pasting the item into macOS's Preview app. Pasting into Preview.

Use the File Explorer to navigate to the folder you want to change icon sizes in. Using the top toolbar, click "View." You'll find a variety of size and ordering options for the files in the folder.

This function can be turned on and off in Finder -> View -> Show View Options by checking the box next to Show Preview Icon, but in some cases it may not work even if you have the setting enabled ...