Color posterization amount (0 = none; higher = fewer colors).
Fraction of cells dropped at random, in [0, 1].
Spatial bias of the dissolve, in [0, 1].
Gap between cells, as a fraction of the cell (0 = touching).
Punch transparency in gaps/dropped cells instead of showing source.
Cell shape.
Cell size, in px.
Cell width factor (1 = square; >1 wider).
Blend toward the in-cell average color, in [0, 1].