Does black interior of a cocotte/dutch oven such as Staub create problems with accidentally burning ingredients/fond? The Staub cocotte has a black interior (in contrast to the Le Creuset) as can be seen below. Does this black interior significantly increase the chances of accidentally burning the ingredients and especially the fond which forms at the bottom of the pan. The fond is dark brown in colour anyway so I am worried that it would be very difficult to discern if it's starting to get burnt and turn black against the black interior of the cocotte.
The color of the interior of a pan isn't going to effect how food cooks, but you are right that a dark pan does contrast differently from a light or metal pan. My own experience with pans of many types is that color doesn't make any difference in the end result, I can tell if onions are browning on a dark cast iron pan just as well as a light ceramic coated pan or steel pan.
If you are concerned about it just look at the food on the spoon as you sauté, the spoon is the same color no matter the pan you use.