Nothing like this seems to exist, so I’ve come up with my own.
# *****************************************************************************
# Title Block
# *****************************************************************************
# ==== Level 1 ================================================================
# ++++ Level 2 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
# :::: Level 3 ::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
# .... Level 4 ................................................................
# ---- Level 5 ----------------------------------------------------------------
# ____ Level 6 ________________________________________________________________