message: change schemes
diff: import React from 'react'
  import PropTypes from 'prop-types'
  import styled from 'react-emotion'
  -import {GitMerge, IssueClosed, IssueOpened} from '@githubprimer/octicons-react'
  +import {GitMerge, GitPullRequest, IssueClosed, IssueOpened} from '@githubprimer/octicons-react'
  import theme, {colors} from './theme'
  import {withSystemProps, COMMON} from './system-props'
  import Octicon from './Octicon'
  const schemeMap = {
  - closed: colors.red[6],
  - merged: colors.purple[5],
  - open: '#2cbe4e', // This was generated by a sass function in Primer, so using a hex here
  + issueClosed: colors.red[6],
  + pullClosed: colors.red[6],
  + pullMerged: colors.purple[5],
  + issueOpened: '#2cbe4e', // This was generated by a sass function in Primer, so using a hex here
  + pullOpened: '#2cbe4e', // This was generated by a sass function in Primer, so using a hex here
  gray: colors.gray[5]
  }
  const octiconMap = {
  - open: IssueOpened,
  - closed: IssueClosed,
  - merged: GitMerge
  + issueOpened: IssueOpened,
  + pullOpened: GitPullRequest,
  + issueClosed: IssueClosed,
  + pullClosed: GitPullRequest,
  + pullMerged: GitMerge
  }
  const getOcticon = (scheme, small) =>
  @@ -45,7 +49,7 @@ const styledLabel = styled(StateLabel)`
  `
  StateLabel.propTypes = {
  - scheme: PropTypes.oneOf(['open', 'closed', 'merged']),
  + scheme: PropTypes.oneOf(['issueOpened', 'pullOpened', 'issueClosed', 'pullClosed', 'pullMerged']),
  small: PropTypes.bool
  }
  