Here you go. I selected part of the ribbon, chose select- save selection. Then select another part of the ribbon, choose select- navigate to the selection you saved in the last step then choose add to selection. Do this until you have added the 4 parts of the ribbon to the selection. Then choose load selection. add a layer the I went to select, modify and grew the selection 2 px. Paint the selection, and drag the layer to the bottom below the ribbon.