我会尝试使用 OpacityMask 方法.基本上它应该是这样的:

I would try OpacityMask approach. Basicaly it should look something like this:

<Rectangle Fill="Red">
  <Rectangle.OpacityMask>
    <ImageBrush ImageSource="MyImage.png"/>
  </Rectangle.OpacityMask>
</Rectangle>

通过改变矩形的填充属性，你会得到不同颜色的图像.

by changing rectangle's fill property you would get different colored image.