  return &#39;ColorFilter.mode($_color, $_blendMode)&#39;;
    case _TypeMatrix:
      return &#39;ColorFilter.matrix($_matrix)&#39;;
    case _TypeLinearToSrgbGamma:
      return &#39;ColorFilter.linearToSrgbGamma()&#39;;
    case _TypeSrgbToLinearGamma:
      return &#39;ColorFilter.srgbToLinearGamma()&#39;;
    default:
      return &#39;Unknown ColorFilter type. This is an error. If you\&#39;re seeing this, please file an issue at https:&#47;&#47;github.com&#47;flutter&#47;flutter&#47;issues&#47;new.&#3