WEST FORSYTH — The cafeteria at West Forsyth High School was packed with a change in colors Thursday night — neon green and pink. Hundreds of parents, many with their children, came to the second of two public forums held by the Forsyth County Board of Education on a contentious redistricting process in southwest Forsyth. It’s a process that has left neighborhoods fighting to remain out of the redrawn zones for a new middle school and at their familiar campus.