(Rounded) Rectangle no more transparent after project reload

Bugs and Feature Requests
1

Bug:

  1. I create a rectangle or a rounded rectangle its Fill color is white by default.
  2. I activate Transparent it remains white (in editor but also in runtime).
    → Expected behavior: Independent of fill color the (rounded) rectangle should be displayed transparent
  3. I set Opacity on clicking Fill Color to 0%, it gets transparent (in editor and also runtime)
  4. I save the project, close and reopen it. The Fill Color of the (rounded) rectangle is now black
    → Expected behavior: The (rounded) rectangle should be displayed transparent

Tested in Xojo 2’022 Release 3.2 and also in Release 4 on Mac Book Pro M1 Max, macOS Monterey 12.2.1.