message: remove withDefaultTheme from Caret
diff: import React from 'react'
  import PropTypes from 'prop-types'
  import {style} from 'styled-system'
  -import {withDefaultTheme} from './system-props'
  +import {theme} from './theme'
  const oppositeEdge = {
  top: 'Bottom',
  @@ -103,7 +103,8 @@ Caret.defaultProps = {
  borderColor: 'gray.2',
  borderWidth: 1,
  location: 'bottom',
  - size: 2
  + size: 2,
  + theme
  }
  Caret.propTypes = {
  @@ -119,4 +120,4 @@ Caret.propTypes = {
  /* eslint-enable */
  }
  -export default withDefaultTheme(Caret)
  +export default Caret
  