*Use BC_Title instead of C41TextBox, to reflect the fact that min_r,
min_g... are unchangeable*
On purely subjective grounds, I think it makes more sense visually to have an unmodifiable TextBox instead of a changing "title". That way, the user can see immediately that these variables must be computed somehow, whereas having them as a title could lead to thing they're static.
After extensive use, the display of the values is necessary on the strict point of view of color grading. It gives a reminder of what values where if you need to modify the calculated ones manually.
Cheers E
