Nyall Dawson eb750fb7a8 Use doubles for properties in QgsAbstractMaterialSettings subclasses
These classes are supposed to store the original setting values,
so doubles are more appropriate as they won't slightly change
eg when round-tripping through qgis project XML.

(The actual 3d material classes still use floats, this is just
for the settings classes)
2024-11-26 20:05:30 +10:00
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