.comment RGB arrows represent the XYZ axes respectively
.color red
.arrow 0 0 0 100 0 0 3 12 0.9
.color green
.arrow 0 0 0 0 100 0 3 12 0.9
.color blue
.arrow 0 0 0 0 0 100 3 12 0.9
.comment Red polygon represents the upper surface of the plasma membrane
.color red
.polygon 8 115 8 8 115 268 268 115 268 268 115 8
.comment Green box represents the box bounding the pkp layer
.color green
.transparency 0.7
.box 15 130 15 255 220 255