warning-levels

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

((:emergency "Emergency%s: " ding)
 (:error "Error%s: ")
 (:warning "Warning%s: ")
 (:debug "Debug%s: "))

• This variable may be risky if used as a file-local variable.

Documentation:
List of severity level definitions for `display-warning'.
Each element looks like (LEVEL STRING FUNCTION) and
defines LEVEL as a severity level. STRING specifies the
description of this level. STRING should use `%s' to
specify where to put the warning type information,
or it can omit the `%s' so as not to include that information.

The optional FUNCTION, if non-nil, is a function to call
with no arguments, to get the user's attention.

The standard levels are :emergency, :error, :warning and :debug.
See `display-warning' for documentation of their meanings.
Level :debug is ignored by default (see `warning-minimum-level').