How do I use Color Mask Maps in Blender?

Sbsar files are supported in Blender, and all the colors in a Base Color Map which are defined in Color Mask Maps can be simply changed into any colors you want.
Kindly follow the steps in the below.

1. Please choose the “Substance 3D” panel and open a sbsar file by clicking the “Load” button as below.

2. Click the “Apply” button to directly apply the material on the object.

*If the material is not still applied to the object, please check if there’s another material which is applied to the object or the Display mode is correctly chosen.

If any other materials exist in the Material Properties, please remove them.

If Display Mode(Viewport Shading) is chosen as “Wireframe” or “Solid”, you must change it to “Material Preview” or “Rendered” to make the material visible.

3. On the Substance 3D Panel, drop down the menus under Parameters > Base Color Mask Maps.

4. When you click a color box that needs to be changed, a Color Change Window will pop up.

Now you can change every color that each mask map originally shows by adjusting numbers in the 3 types of codes(RGB, HSV, and HEX) or simply picking a new color on the color panel.