ENH: Update ShapePopulationViewer from revision f9e2c1d832096e7d17dc4e8ff9bce6f91f2eebb6 to 1a4bb630d60fe3f85f04b98ad895c13e1da12c49

https://www.github.com/NIRALUser/ShapePopulationViewer/compare/f9e2c1d832096e7d17dc4e8ff9bce6f91f2eebb6%E2%80%A61a4bb630d60fe3f85f04b98ad895c13e1da12c49