So, a link that doesn’t coincide with your point proves it? What an odd world you live in. Major news outlets agreeing to a color scheme is not proof of conspiracy.
In other words, a bunch of people got together to decide something.
Do you understand what that means?
Question: Was Communism historically signified by the color RED or not?
Yes or No will suffice.
Throughout the rest of the world, specific colors carry very specific designations and are widely understood by the general population:
Blue - The color of the Progressive Conservative Party of Canada and British conservatives of the UK. “Tory blue” is associated with more right-wing, conservative political thought.
Red - Canada's “Liberal red” and Britain's Labor Party are considered more socialist, or left-wing. In some cases, red is associated with communistic governments. During the McCarthy era in the U.S., pink was the color of socialist ideology.