{diagrams} is for general questions about vector graphics created programmatically inside a (La)TeX document. For questions about specific packages, use the appropriate tag, e.g. {tikz-pgf} or {pstricks}. For questions about inclusion of external graphic files, use {graphics} instead.

is for general questions about vector graphics created programmatically inside a (La)TeX document. For questions about specific packages, use (also or instead) the appropriate tag, e.g. or . For questions about inclusion of external graphic files, use instead.