An application MUST use the standard CLI icon, or the standard CLI badge over an alternative icon, if the user must use X Terminal to start the main purpose of the application.
Packages which auto-start in a secure manner, or enable alternative functionality in other applications, SHOULD NOT use the CLI icon, as interaction with them through the CLI is not required.
Any daemon which auto-starts MUST NOT provide a trivial attack vector, and so SHOULD (for example) prompt for a password during installation.