Move the mouse to the top left corner and fiddle with the variables :) :) :) :) :):) :) :) :) :):) :) :) :) :):) :) :) :) :):) :) :) :) :):) :) :) :) :) :):):) :) :) :) :):) :) :) :) :):) :) :) :) :):) :) :) :) :):) :) :) :) :):) :) :) :) :):) :) :) :) :):) :) :) :) :):) :) :) :) :):) :) :) :) :):) :) :) :) :):) :) :) :)
Tutorial by griffpatch
