code: func (c *Overlay) HighlightFrame(frameId string, contentColor *DOMRGBA, contentOutlineColor *DOMRGBA) (*gcdmessage.ChromeResponse, error) {
  	var v OverlayHighlightFrameParams
  	v.FrameId = frameId
  	v.ContentColor = contentColor
  	v.ContentOutlineColor = contentOutlineColor
  	return c.HighlightFrameWithParams(&v)
  }
docs: // HighlightFrame - Highlights owner element of the frame with given id.
  // frameId - Identifier of the frame to highlight.
  // contentColor - The content box highlight fill color (default: transparent).
  // contentOutlineColor - The content box highlight outline color (default: transparent).