when someone is posting from ukraine, it shows the ukrARYAN flag next to their name. but instead of showing the modern day flag of the republic of ukraine, it shows the flag of the histroical short-lived ukranian people's republic (german empire's puppet state btw), which uses lightler shades of blue and yellow.
TL;DR: 2nd image is the old flag of ukraine, 3rd image is the modern one. the geo flags show the old flag.