sport missing from leisure=pitch, sports_centre

https://shortbread-tiles.org/schema/1.0/#layer-pois says that "sport" should be set for "leisure=pitch,​sports_centre". Looking in debug at https://map.atownsend.org.uk/vector/index_svwd05.html#17.24/53.388644/-6.25022 , the two unnamed pitches https://www.openstreetmap.org/way/236467012#map=18/53.388673/-6.249316 and https://www.openstreetmap.org/way/1323171943#map=18/53.388737/-6.248324 do not have sport written through to the tiles, just leisure=pitch. Similarly sport=soccer should be written for https://www.openstreetmap.org/way/558672508#map=18/53.388638/-6.250443 but https://map.atownsend.org.uk/vector/index_svwd05.html#17.24/53.388644/-6.25022 suggests that the name is written through, but no sport.