docs: function (iconInfo, active) {
              // TODO: mutualize with the icon widget
              var style = ['padding:0;display:inline-block;background-position:-', iconInfo.iconLeft, 'px -',
                      iconInfo.iconTop, 'px;width:', iconInfo.width, 'px;height:', iconInfo.height,
                      'px;vertical-align: top;'];
              if (active) {
                  style.push('cursor:pointer;');
              }
              return style.join('');
          }