Fleabit creates a gradient of dappled spots, slowly eroding the design. Its main effect is a gradient or gradual buildup of spots and tick marks, in a mix of white and grey, eventually coalescing into a solid blanket like a flecked piebald. 

Fleabit shows up above the entire design, like a White marking. Fleabit may use the White, Offwhite, and Ash sliders, and should use at least three shades of white and grey.