message: add theme to SelectMenu
diff: import styled from 'styled-components'
  import {COMMON} from './constants'
  +import theme from './theme'
  import {wrapperStyles} from './SelectMenuStyles'
  import SelectMenuDivider from './SelectMenuDivider'
  import SelectMenuFilter from './SelectMenuFilter'
  @@ -29,4 +30,7 @@ SelectMenu.Summary = SelectMenuSummary
  SelectMenu.Tabs = SelectMenuTabs
  SelectMenu.Tab = SelectMenuTab
  +SelectMenu.defaultProps = {
  + theme
  +}
  export default SelectMenu
  