Adding together smoothly changing force fields results in a smoothly blended transition between the components. You can give a component a negative strength if you want. Such a component will make a dent in its neighbor instead attracting it and blending with it. You form interesting blobs by lumping together positive components and carving them away with negative components. In the lower-left corner of the Blob Editor are three text entry fields and a Refresh button.
Threshold is the threshold of the blob as a whole.
Field Strength is the strength of the currently selected Component. If no component is selected, this field is empty. Granularity refers to how finely Mondfarilo approximates the Blob's surface. Decreasing this number increases the accuracy of the approximation, at the cost of increased time and space. Blob Components are drawn as heavy black or gray circles.