Hi everyone,
If you want to try what Slicer would look like using Material color schemes, you may be interested in the qt-material python extension (GitHub - UN-GCPDS/qt-material: Material inspired stylesheet for PySide2, PySide6, PyQt5 and PyQt6).
It can be used directly in Slicer’s Python console :
slicer.util.pip_install("qt-material")
from qt_material import apply_stylesheet
apply_stylesheet(slicer.app, theme='light_blue.xml')