Some of the fruit is bleached. For other strategic fruit marketing destinations, such as pie and doughnut fillings, it may also be pulped and reconstituted into square-ised pseudo-cube lumps.

The natural colour of the bright red cherries in tinned fruit salad was zombie-grey. They only became lipstick red after they'd been marinated in colouring for a few hours.

Things may have changed now, but I'd guess that a lot of what comes out of food processing factories is still rather disturbing in its naked state.