How to apply a color filter on a png with transparency on flutter?

I'm trying to paint a .png that has a transparent background:

I did:

              RotatedBox(
                      quarterTurns: 2,
                      child: ColorFiltered(
                        child: Image.asset('metronome_off.png', height: 25),
                        colorFilter: ColorFilter.mode(
                            Colors.yellow, BlendMode.exclusion),
                      ))

And tried all possible BlendMode. types. In all of them the image gets painted, but also the background. How can I paint only the image?

Would it be better instead to make this trapezoid in Flutter using some paint tools? I guess it'd be too hard.

Try this code:

ColorFiltered(
  colorFilter: ColorFilter.mode(Colors.yellow, BlendMode.srcATop),
  child: RotatedBox(
    quarterTurns: 2,
    child: Image.asset(
      "metronome_off.png",
      height: 25,
    ),
  ),
)