 The church featured ample exterior and interior decoration . While the facades were decorated with arches and ceramic tiles , the interior floor mosaics were made of white , yellow and pink marble as well as semi @-@ precious gemstones like sapphire and porphyry . The interior walls were covered with frescoes and mosaics . However , none of the interior decoration has survived . During the church 's 20th @-@ century reconstruction , its interior was repainted by artist Teofan Sokerov , who depicted important moments of medieval Bulgarian history in a modernist style . Due to these murals , the church has never been reconsecrated and remains inactive . The facade of the cathedral also includes a stone with a donor 's inscription of a Bulgarian ruler , which ended up as part of the building material . 
 The church featured ample exterior and interior decoration . While the facades <a href='uninflect' title='1'><mark>were</mark></a> decorated with arches and ceramic tiles , the interior floor mosaics <a href='uninflect' title='2'><mark>were</mark></a> made of white , yellow and pink marble as well as semi @-@ precious gemstones like sapphire and porphyry . The interior walls <a href='uninflect' title='3'><mark>were</mark></a> covered with frescoes and mosaics . However , none of the interior decoration <a href='been_done' title='4'><mark>has</mark></a> survived . During the church <a href='null_genetive' title='5'><mark>'s</mark></a>20th @-@ century reconstruction , its interior was repainted by artist Teofan Sokerov , <a href='null_relcl' title='6'><mark>who</mark></a>depicted important moments of medieval Bulgarian history in a modernist style . Due to <a href='None' title='7'><mark>these</mark></a><a href='negative_concord' title='8'><mark>murals</mark></a> , the church <a href='been_done' title='9'><mark>has</mark></a> never been reconsecrated and <a href='uninflect' title='10'><mark>remains</mark></a> inactive . The facade of the cathedral also <a href='uninflect' title='11'><mark>includes</mark></a> a stone with a donor <a href='null_genetive' title='12'><mark>'s</mark></a>inscription of a Bulgarian ruler , which ended up as part of the building material . 
The church featured ample exterior and interior decoration . While da facades was decorated with arches and ceramic tiles , the interior floor mosaics was made of white , yellow and pink marble as well as semi @-@ precious gemstones like sapphire and porphyry . The interior walls was covered with frescoes and mosaics . However , none of the interior decoration done survived . During tdachurch  20th @-@ century reconstruction , its interior was repainted by artist Teofan Sokerov , depicted important moments of medieval Bulgarian history in a modernist style . Due to no murals , thdahurch done never been reconsecrated and remain inactive . The facade of the cathedral also include a stone wid a donor  inscription of a Bulgarian ruler , which ended up as part of thedailding material .