A freshly opened track in sidescan view starts with both lightness and contrast at 0 value. A mouse over the slider will reveal the value..
I think that an always visible value box is desirable as well as a sort of reset to default value button.
Further the autogain function to me is workig like this: if set to 0 no change at all.
0.05 make the gain noticable.
From 0.1 to 1.00 (max value) I cannot see any difference with the 0.05 autogain value. Why?