code: public void setColorForTotal(int row, int column, Color color){
  		int mapC = (colors.length-1) - column;
  		int mapR = (colors[0].length-1) - row;
  		colors[mapC][mapR]=color;		
  	}
docs: Sets the color for the big total between the column and row
  @param row row index (starting from 1)
  @param column column index (starting from 1)
  @param color