What happens if I hold down the ctrl key on the color slider in the color tab?

Question

Adobe Illustrator

In the example, all 4 sliders move at the same time, but it happens that two or three sliders move.
I want to understand what it gives me and how to use it predictably in my work?

Answer 1

This is an analogue of the Tint function that any Swatch has. In Russian - the level of filling colors changes.
When you drag one of the sliders, the number of sliders trailing behind the cursor depends on the current color. If the current color consists of 4 colors, all 4 sliders will move. If the current color consists of 1/2/3 colors, and the remaining values ​​are zero - only the corresponding sliders will move, the zero ones will remain in place.