What is the meaning of the dark circle pie like icon at the right side of my file list in my PC?

When I insert my jpg files into the PC, I see a small dark circle icon.
What is the meaning of dark circle?

See attached file
dark-circle-icon.JPG
Gordon TinIT ManagerAsked:
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☠ MASQ ☠Commented:
It indicates the progress of transferring/syncing the image files -either to a different drive or to cloud storage like iCloud
As the transfer progresses the "pie chart" should become less white and more grey.
https://discussions.apple.com/thread/8352984

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Nicolas LecanuAnalyst developerCommented:
Hi Gordon,
This is just like a simple progress barre without the "%"
Gordon TinIT ManagerAuthor Commented:
thanks
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