warning-level-aliases

warning-level-aliases is a variable defined in `warnings.el'.
Its value is

((emergency . :emergency)
 (error . :error)
 (warning . :warning)
 (notice . :warning)
 (info . :warning)
 (critical . :emergency)
 (alarm . :emergency))

Documentation:
Alist of aliases for severity levels for `display-warning'.
Each element looks like (ALIAS . LEVEL) and defines ALIAS as
equivalent to LEVEL. LEVEL must be defined in `warning-levels';
it may not itself be an alias.