It is exactly the same effect that you are pointing at with your green line. The lines originate from the surface, not from within the sun.
Nobody doubted that magnetic ropes originate above the solid surface in the first place! The lines originate at the *solid surface* and they rise 4800KM through the atmosphere before they even reach the chromosphere shown in orange. The magnetic ropes *are the light source*, and they can only occur *above the solid surface*. The limb *darkening* is the part you're ignoring, along with it's relationship to the orange band! The limb darkening in the iron lines shows us the horizon of the solid surface, whereas the inside edge of the orange band shows us where the photosphere is located. There is a 4800KM gap between the two going in the *WRONG* direction.
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