Background:
convert -size 720x480 gradient:blue-black         -gravity center -matte "/tmp/test/Disk 2.0/bg
_canvas.png"


Menu Text:
composite -compose Over -gravity center     "/tmp/test/Disk 2.0/03_active-text.png" "/tmp/test/
Disk 2.0/bg_canvas.png" -depth 8 "/tmp/test/Disk 2.0/menu.ppm"