I noticed that D5 Render use linear color sliders. I think that non linear color sliders are much better which use most of the 2D and 3D software because these sliders have much more space for black to grey colors which users use commonly. Currently right half part of D5 color sliders have too many space for very bright values.
Current linear color sliders :
non-linear, logarithmic color sliders :
Hi Smolak,
D5 Render’s color slider is already the standard 0–255 non-linear slider. The midpoint is 128, so it’s WYSIWYG.
For a truly linear slider, the midpoint would be around 189 (as in the image below).
Hi @LiaHuang,
Sorry for my mistake. I have in mind opposite option to non-linear 
Just like we have in Cinema 4D for example :
User have possibility to more precise control over low brightness values. I observed that D5 produce bright enough images and most materials use low diffusion values.