About `uint32_t rgb: ` with`signature_from_utility(...)` and `get_signature(...)`

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about uint32_t rgb

         _visionF.print_signature(_visionF.get_signature(1));

ouput : uint32_t rgb:9024627

     _visionF.print_signature(_visionF.signature_from_utility(1, -3583, -2825, -3204, -5375, -4649, -5012, 6.300, 0));

ouput : uint32_t rgb:0
I don’t quite understand the meaning of uint32_t rgb:"
Is he an insignificant number?

@ jpearman