define possible button types
define possible button types

Filsh/elemental-themeable,bs1180/elemental,beni55/elemental,LegNeato/elemental,MunGell/elemental,VictorBjelkholm/elemental,jerrysdesign/elemental,kidaa/elemental,dmsnell/elemental,w01fgang/elemental,CallMeFabioo/elemental,bradparks/elemental,khacluan/elemental,LegNeato/elemental,MunGell/elemental,averted/elemental,khacluan/elemental,zhiephie/elemental,kidaa/elemental,jerrysdesign/elemental,bradparks/elemental,hnq90/elemental,xaadim/elemental,CallMeFabioo/elemental,zackify/elemental,MunGell/elemental,kof/elemental,w01fgang/elemental,zhiephie/elemental,pairyo/elemental,xaadim/elemental,elementalui/elemental,pairyo/elemental,bs1180/elemental,dmsnell/elemental,Filsh/elemental-themeable,beni55/elemental,w01fgang/elemental,LennyBoyatzis/elemental,averted/elemental,zackify/elemental,kof/elemental,hnq90/elemental,shaunstanislaus/elemental,VictorBjelkholm/elemental,apisandipas/elemental,LennyBoyatzis/elemental,teaualune/elemental,elementalui/elemental,elementalui/elemental,apisandipas/elemental,teaualune/elemental,shaunstanislaus/elemental