OKLAHOMA CITY - If you've scrolled through Facebook, you've probably seen the popular profile picture overlays.
In recent months, your friends have probably shared a photo with a flag over it to stand beside a community going through tragedy.
"I think the most popular would be Belgium. Almost 1 million users in a day," Chase Williams, director of operations for ProfileOverlays.com, said.
"When the attacks happened in Belgium, we just saw the flag skyrocket. Just tons of people using our flag, just trying to unify over what happened,” Tony Weedn, a major in the Air Force and CEO of the company, said.
The idea for the company started by veterans a year ago.
"Here's the idea. I think we can kind of bring America together, celebrate the Fourth of July and so we started this website celebratetheusa.org and that's where the original American overlay flag came from,” Weedn said.
Since then, Tony Weedn expanded the business to include flags from 236 countries and territories.
"We had profile picture flag, which was every country in the world, a custom overlay for Facebook and nobody else has done that,” Weedn said.
They've had millions of users overlay their photo, and the idea has taken off.
"When we launched this, there were people who kind of competed with us and created different American flag overlays or France overlays, but we kind of dominate the market because we were the first people to do it," he said.
Now, they want to unify the country again.
They're asking everyone to change their Facebook overlay to the American flag on the Fourth of July.
They want 10% of the country to use the overlay, roughly 33.3 million people.
"If there's one thing we can all agree on, it's that the American flag stands for freedom, and we've all been blessed that we live in this country where we are free,” Weedn said.
The owners also created a custom overlay that helped raise $2 million for Syrian refugees.