It could be a Menorah, a symbol of Judaism.
Or it could be Lotus Flower floating on the water, symbolizing Buddhism.
The red could be a chalice symbolizing Christianity.
And the green could be the crescent and star of Islam.
The entire image could be an angel, its head in the center, feet on the ground and outstretched arms and wings.
Or a Hindu deity.
Or it could be a tree.
In any case the image is open, and entirely embracing as befits someone in dialogue.
And thoroughly intertwined as all religions and societies are with each other.