Visit: https://api.flutter.dev/flutter/dart-ui/Canvas/drawVertices.html

The documentation suggests using dstOver and srcOver blend modes to select the vertex or paint colors respectively. This is slightly incorrect - the correct blend modes are dst and src. (There is no difference if the colors are opaque, but for transparent colors, dstOver and srcOver will blend against the other component).