themeless bootstrap skin+*machine input+*mates+*self Set Toggle navigation activity Toggle Dropdown history discuss follow editors rules Toggle Dropdown common by group by name recent edit Toggle Dropdown content name type refresh children mates references out references in +*children Cards formed by "mating" themeless bootstrap skin+*machine input+*mates+*self with another card. eg: "themeless bootstrap skin+*machine input+*mates+*self+mate".