While the black, green and yellow colors are an ode to Nelson Mandela’s political party, the African National Congress, the red, white and blue are reminiscent of the flags of the European ...

All you have to do is stare at the middle of the green, yellow, and black version of the Union Jack flag. This will then disappear and you may see the traditional red, white, and blue flag.

Regional flags have also been adopted, with Syria's Kurds flying their red, white, green and yellow flag in areas they control.

"We are all guilty of telling white lies ... this could be a red flag. This lack of commitment could cause problems down the line. Yellow flags vs. red flags Yellow flags are also warning signs ...