Hi Ronald,
There exists a library of predefined images.png
A method to find hidden library calls in deeply nested trees: biuld a searchable Trace tree of the execution call
tr= Trace[ LineInegral....];
pos=Position[tr, Automatic,Infinity];
In order to get the bracket structure, drop some indices at the and of the position element list.
tr[Drop[ pos[[ 4 ]], -2 ]
Roland Franzius
