SlSl/nSl
Seal is a modifier that desaturates the basecoat making it almost grey.
Rare bases are not affected by this modifier.
You have 2 choices to display Seal:
All markings and basecoat can be desaturated. Colors can be picked from the sliders below with the exception of markings that are saturated (Robin, Toxin, Dust, etc) these can use normal color or saturated color. If desired, it is allowed to make 1-2 markings with the normal sliders colors
Seal can partially desaturate the basecoat, up to 50% of the design can be partially desaturated. The area that will be desaturate must include also markings (you cannot desaturate just the basecoat and not the markings in that affected area)
Here are the altered colors. You are allowed to desaturate your base further but remember to do not make it resemble charcoal.
Here there is the same kiseilian with seal affecting the design partially. you can either make the greying area soft edged or make it hard edged (sort of like chimerism!)
In this case the tone of grey that you use can be further desaturated compared to the basecoat sliders and be almost 100% grey.
Note that with the partial seal you may not cover more than the 50% than the design with grey!