ENH: Update ShapePopulationViewer from 45c20d94a4d5a2c8ea4ccd57ef36943a04eedf86 to 6acb3f91b2039e0f4c5c45d8d4fcb7bf5a523bf0

https://www.github.com/NIRALUser/ShapePopulationViewer/compare/45c20d94a4d5a2c8ea4ccd57ef36943a04eedf86%E2%80%A66acb3f91b2039e0f4c5c45d8d4fcb7bf5a523bf0