# don't assume w=1 when checking if the transform is just a translation---root:items:-type:stacking-contextbounds:[50,50,600,600]perspective:20items:-type:stacking-contexttransform:[1,0,0,0,0,1,0,0,0,0,1,0,0,0,0,2]items:-type:rectbounds:[50,50,100,100]color:red