labels: return null style if label is discarded
labels: return null style if label is discarded

xvilan/tangram,DHaylock/tangram,taylorhxu/tangram,xvilan/tangram,tangrams/tangram,xvilan/tangram,TitoAgudelo/tangram,DHaylock/tangram,TitoAgudelo/tangram,ceseale/tangram,taylorhxu/tangram,DHaylock/tangram,zerebubuth/tangram,rosamcgee/tangram,ceseale/tangram,zerebubuth/tangram,tangrams/tangram,taylorhxu/tangram,TitoAgudelo/tangram,rosamcgee/tangram,zerebubuth/tangram,ceseale/tangram,rosamcgee/tangram