`styled()` breaks flow type checking for props?

Version

styled-components: 2.2.3
flow-typed: styled-components_v2.x.x.js

Reproduction

Running flow on something like this results in styled() breaking prop type checks:

/* @flow */

import type { ComponentType } from 'react'
import React from 'react'
import styled from 'styled-components'

type Props = {
  color: string,
}

const Title: ComponentType<Props> = styled.h1`
  color: ${({ color }) => color};
`

const RenderRedTitle = () => <Title color="red">Title</Title> // Expected -- No flow error
const RenderBadTitle = () => <Title color={3}>Title</Title> // Expected -- Flow error

/**************************
 *     Using `styled()    *
 **************************/
const StyledTitle = styled(Title)`
  font-size: 10px;
`

const RenderRedStyledTitle = () => <StyledTitle color="red">Title</StyledTitle> // Expected -- No flow error
const RenderBadStyledTitle = () => <StyledTitle color={3}>Title</StyledTitle> // Unexpected -- No flow error

Expected Behavior

const RenderBadStyledTitle = () => <StyledTitle color={3}>Title</StyledTitle> causes a Flow error on color not being a string.

Actual Behavior

const RenderBadStyledTitle = () => <StyledTitle color={3}>Title</StyledTitle> does not cause a Flow error.

[alejandrodnm]

@sohkai have you tried doing something like this?

const StyledTitle: typeof Title = styled(Title)`
  font-size: 10px;
`

[javi10823]

@sohkai have you tried doing something like this?

const StyledTitle: typeof Title = styled(Title)`
  font-size: 10px;
`

save my life! cc @sturmenta