The getter 'secondaryVariant' isn't defined for the class 'ColorScheme'.

[Michael2008S]

../lib/src/flow_graph_view.dart:145:52: Error: The getter 'secondaryVariant' isn't defined for the class 'ColorScheme'.

• 'ColorScheme' is from 'package:flutter/src/material/color_scheme.dart' ('../../../../../../Library/flutter/packages/flutter/lib/src/material/color_scheme.dart').
  Try correcting the name to the name of an existing getter, or defining a getter or field named 'secondaryVariant'.
  var focusColor = Theme.of(context).colorScheme.secondaryVariant;
  ^^^^^^^^^^^^^^^^

[vkbaloda]

Created fix for this and raised a pull request #10