** valori: a WeeChat color name (default, black, (dark)gray, white, (light)red, (light)green, brown, yellow, (light)blue, (light)magenta, (light)cyan), a terminal color number or an alias; attributes are allowed before color (for text color only, not background): "*" for bold, "!" for reverse, "/" for italic, "_" for underline
** valori: a WeeChat color name (default, black, (dark)gray, white, (light)red, (light)green, brown, yellow, (light)blue, (light)magenta, (light)cyan), a terminal color number or an alias; attributes are allowed before color (for text color only, not background): "*" for bold, "!" for reverse, "/" for italic, "_" for underline
** descrizione: pass:none[default options for command /exec (see /help exec); example: "-nosh -bg" to run all commands in background (no output), and without using the shell]
** descrizione: pass:none[shell to use with command "/exec -sh"; it can be just the name of shell if it is in PATH (for example "bash") or the absolute path to the shell (for example "/bin/bash"); if value is empty, "sh" is used (note: content is evaluated, see /help eval)]