internal bool GetAtomIsSupported(XlibAtomId id)
 {
     var(supportedAtomIndex, supportedAtomBitIndex) = DivRem((nuint)id, SizeOf <nuint>() * 8);
     return((_supportedAtoms.Value[supportedAtomIndex] & ((nuint)1 << (int)supportedAtomBitIndex)) != 0);
 }
 internal nuint GetAtom(XlibAtomId id) => _atoms.Value[(nuint)id];