This banner is made of purple felt, signifying a period of penitence and preparation for the coming of the King.  The many colored small stars remind us of God's promise to Abraham that I will give you as many descendants as there are stars in the sky.  Genesis. 22:17.
The large white metallic star represents the coming Messiah.  Sequins outline some of the small stars to sparkle as the stars in the sky sparkle.