I seen the movie, but I don't remember all the details. What was the color red supposed to signify? Why were the people so afraid of the color red?
Red was the colour of the "outsiders" or the monsters that lurked in the woods. This stigma carryed to a general paranoia of red including a scene were some girls panic when they see a red flower blooming and hastily bury it. Yellow was the colour of the Village and a protective colour (yellow robes were worn by the sentries on the towers, flying yellow flags). The while colour thing was a construct and an example of how cults use "straw man" concepts to paralyse a community.