The Erupt Tool was applied many times to produce this Liquib sample image.  All of them used the Dual Colors Erupt Style, which blends 2 colors, either specifically chosen or randomly selected (as with most of these).  A single radial Spew Erupt Action was applied at the center.  That is surrounded by Burrow trails, which are enclosed by a bunch of Plow furrows.  These Eruptions were composed from a mixture of Round, Spikey and Brick Fragment Shapes.