Although the controversy over the official emblem for 2020 Tokyo Olympics is heating up, experts say it won't turn out to be such a big issue after all.

Earlier Thursday, Belgian designer Olivier Debie announced he will file a lawsuit against the International Olympic Committee over the official 2020 Olympics emblem, claiming Japanese graphic designer Kenjiro Sano plagiarized his work.

The official emblem for the sports event, which was unveiled at the end of last month, is said to look similar to the logo that Debie designed for a theater in the eastern Belgian city of Liege in 2011.