Type /diamond sizerange to create the diamond.
Default value is set to 2.

alias diamond {
  var %i $iif($1,$v1,2), %j 1
  while (%i >= 1) {
    /echo -a $str($chr(160),$v1) $str(*,%j)
    inc %j 2 
    dec %i
  }

  %i = 2
  dec %j 2

  while (%i <= $iif($1,$v1,2)) {
    dec %j 2   
    /echo -a $str($chr(160),$v1) $str(*,%j)  
    inc %i 
  }
}