P: Select Sky and Select Subject should obey Preferences > Performance > Use Graphics Processor

[johnrellis]

Select Sky and Select Subject should obey the setting of Preferences > Performance > Use Graphics Processor. That will greatly accelerate troubleshooting when users have incompatible GPUs or out-of-date drivers. In my quickie testing on Windows, these commands take 1-2 seconds with a GPU and 5-10 seconds without (so still quite useable).

Both the CoreML library (Mac) and the ONNX Runtime (Windows) allow the client to specify whether the CPU or the GPU is used to execute models.

[johnrellis]

This would also allow people with older graphics chipsets that lack newer drivers to use Select Sky and Subject.