_sassybuttons.scss padding not compiling

[zreese]

For the life of me, I can't get padding changes to compile. There's nothing else overriding the padding. I'm using version 0.2.6.

Here is my _sassybuttons.scss file...

@import "sassy-buttons";

$sb-base-color: #5B728F;
$sb-second-color: false;
$sb-border-radius: 4px;
$sb-padding: 0 0 0 0;
$sb-font-size: 16px;
$sb-text-color: white;
$sb-text-style: "inset";
$sb-gradient-style: "flat";
$sb-pseudo-states: true;
$sb-ie-support: true;

And in my other scss file I call it like this...

input[type="submit"] {
  @include sassy-button("flat", 6px, 20px, $blue, $blue, white, "inset");
}

But no matter what, this is what's compiled to the css file...

input[type="submit"] {
  font-size: 20px;
  padding: 0.2em 1.1em 0.3em 1.2em;
  color: white;
  display: inline-block;
  cursor: pointer;
  text-decoration: none;
  -webkit-border-radius: 6px;
  -moz-border-radius: 6px;
  -ms-border-radius: 6px;
  -o-border-radius: 6px;
  border-radius: 6px;
  filter: progid:DXImageTransform.Microsoft.gradient(gradientType=0, startColorstr='#FF5B728F', endColorstr='#FF334051');
  background-color: #5b728f;
  border: 0;
  text-shadow: #293441 0 -1px 0;
}