The Symbol accordion box in IAAM will use the generalized SymbolNode from shred to avoid its duplication in IAAM, BAA, and Build a Nucleus - BAN (https://github.com/phetsims/build-a-nucleus/issues/9#issuecomment-1045454629). This branch will be deleted once MakeIsotopesScreenView.js no longer creates its own symbol node implementation and uses the SymbolNode from shred instead.
The Symbol accordion box in IAAM will use the generalized SymbolNode from shred to avoid its duplication in IAAM, BAA, and Build a Nucleus - BAN (https://github.com/phetsims/build-a-nucleus/issues/9#issuecomment-1045454629). This branch will be deleted once MakeIsotopesScreenView.js no longer creates its own symbol node implementation and uses the SymbolNode from shred instead.