icheck settings

_styled_checkbox.scss

/* iCheck plugin Flat skin, ip
----------------------------------- */
.icheckbox_flat-ip,
.iradio_flat-ip {
  display: inline-block;
  *display: inline;
  vertical-align: middle;
  margin: 0;
  padding: 0;
  @include iv-sprite-background();
  @include iv-sprite(17px, 20px, 0 0);
  border: none;
  cursor: pointer;
}

.icheckbox_flat-ip {
  background-position: 0 -154px;

  &:hover {
    background-position: -19px -154px;
  }
  &.checked {
    background-position: -38px -154px;

    &:hover {
      background-position: -95px -154px;
    }
  }
  &.disabled {
    background-position: -58px -154px;
    cursor: default;
  }
  &.checked.disabled {
    background-position: -77px -154px;
  }
}
.iradio_flat-ip {
  background-position: 0 -173px;

  &:hover {
    background-position: -19px -173px;
  }
  &.checked {
    background-position: -38px -173px;

    &:hover {
      background-position: -95px -173px;
    }
  }
  &.disabled {
    background-position: -58px -173px;
    cursor: default;
  }
  &.checked.disabled {
    background-position: -77px -173px;
  }
}
.error .icheckbox_flat-ip {
  background-position: -114px -108px;

    &.checked {
    background-position: -38px -108px;

    &:hover {
      background-position: -95px -108px;
    }
  }
}
.error .iradio_flat-ip {
  background-position: -114px -129px;

  &.checked {
    background-position: -38px -129px;

    &:hover {
      background-position: -95px -129px;
    }
  }
}

project.js

(function ($, window, document) {
  Drupal.behaviors.project_theme = {
    attach: function (context) {

    $('.element input').iCheck({
      checkboxClass: 'icheckbox_flat-ip',
      radioClass: 'iradio_flat-ip',
      increaseArea: '20%' // optional
    });
      
  };
})(jQuery, window, document);

project.make

libraries[icheck][download][type] = "get"
libraries[icheck][download][url] = "https://github.com/fronteed/iCheck/archive/master.zip"
libraries[icheck][destination] = "../../profiles/project/themes/project_theme/lib"