Advent is the season of preparation for Christmas.  Purple has traditionally been the primary color of Advent, symbolizing repentance and fasting.  Purple is also the color of royalty and the sovereignty of Christ, demonstrating anticipation of and reception of the coming King celebrated during Advent.  The Pulpit banner is adorned with the Christmas star--have you ever realized that the Christmas star is actually a cross?  The Lectern banner has an angel proclaiming the Good News.  The Communion Table simply says "O Come, Emmanuel."