flutter-team-archive/engine#35576 provided a fix for minimum stroke widths, but it is only guaranteed in a uniform scale coordinate system. That solution is "scale aware" for the device transformation, but If there is a non-uniform scale then the minimum enforced width will be the average of the scales (in particular, the square root of the determinant which means that Z scaling can also affect it).
A proper solution that works even in non-uniform scales and skewed coordinate systems will require more work. These types of transforms are not common, but it is possible to enforce minimum stroke widths even in those cases.
flutter-team-archive/engine#35576 provided a fix for minimum stroke widths, but it is only guaranteed in a uniform scale coordinate system. That solution is "scale aware" for the device transformation, but If there is a non-uniform scale then the minimum enforced width will be the average of the scales (in particular, the square root of the determinant which means that Z scaling can also affect it).
A proper solution that works even in non-uniform scales and skewed coordinate systems will require more work. These types of transforms are not common, but it is possible to enforce minimum stroke widths even in those cases.