Hi,
The new global color modifiers are interesting, but too limited to be used in the real world.
We should be able to create a color variation using adjustments of the three HSL parameters (hue, luminosity and saturation), and not only one.
For instance, when creating a lighter or darker variation of a color, we usually need to adjust hue and saturation a bit too keep the color harmonious with the others, else they usually look a bit “off”.