Create your own template anywhere under /fileadmin and refer to it by Typoscript. If you do not configure your Templatefile by TS, this file will be used by the extension.
INDEX_PAGE contains one Variable per Block. You may wrap around divs, tables or whatever
DETAIL_PAGE contains one Variable per Block. You may wrap around divs, tables or whatever
INDEX_ITEM contains one Index-Character (e.g. "A"). Each character is put after another and inserted into ###INDEX### above.
|###ONE_ITEM###INDEX_RESULTLINE contains one result (Short, long, Description) of the resultlist. It is put into ###RESULTLIST### above.
Not used in example, but possible: RESULT_DESCRIPTIONINDEX_DETAILBLOCK contains one result as detail view (Short, long, Description) if one item was clicked. It is put into ###DETAIL_PAGE### above.
###DETAIL_DESCRIPTION###