#svg-edit-statusbar-button {
  list-style-image: url("chrome://svg-edit/content/editor/images/logo.png");
  display: -moz-box;
  /*-moz-image-region: rect(16px, 16px, 32px, 0px);*/
  padding-left: 0px;
  padding-right: 0px;
  width: 16px;
  height: 16px;

}

#svg-edit-statusbar-button[state="active"] { 
  list-style-image: url("chrome://svg-edit/content/editor/images/logo.png");
  -moz-image-region: rect(32px, 16px, 48px, 0px);
}

#svg-edit-statusbar-button[state="error"] {
  list-style-image: url("chrome://svg-edit/content/editor/images/logo.png");
  -moz-image-region: rect(0px, 16px, 16px, 0px);
}