Missing styles for disabled form elements

Fields, in a form for example, that have a disabled attribute (disabled="disabled") are not showing in the expected grey but instead appear as an editable field due to the following in style.css on line 735:

input.form-autocomplete,
input.form-text,
textarea.form-textarea,
select.form-select {
  padding: 2px;
  border: 1px solid #ccc;
  border-top-color: #999;
  background: #fff;
  color: #333;
}

Removing the last selector, color: #333; would take care of this.

Thanks! Great theme.