Creating image masks in flutter

Issue

Flutter provides several ways for masks based on paths i.e. clip paths. I am trying to figure out a way where one could take an image with transparency layer like example below and use that image to mask another image / view or as a general mask.

My first instinct was to look at CustomPaint class, but I can't figure it out past this initial idea.

Solution

Flutter has BoxDecoration class that takes in BlendMode enum. By utilising these you can achieve various mask effects using images, for my particular case above dstIn was a solution.

Answered By - Ilja