There are a few versions of the official Japanese flags we have used. People often get confused between Kyokujitsu-ki (Japanese flag used on military ships) and Nissho-ki (The Rising Sun Flag).
Both flags are designed with simple red and white stripes. They radiate out from the center, and the design reminds you of the sun.
In Japan, the sunrise is seen as a symbol of good luck. We have worshipped the sun since ancient times, and it has been very symbolic for us. This design has existed before the war.
Some people have hated feelings against the rising sun flag design because of its history in war. Sadly, many people misunderstand the original meaning of it.
I want to emphasize that I use the design as a good omen to bring back the original meaning of sunrise. I want to clarify I do not use it for hurting individuals.