ConstReadonlyBool: 10Boolean; provided for user code, not scalar widgets.
ReadonlyCOUNT: 12Number of storage kinds; not a data type.
ReadonlyDouble: 964-bit floating-point number.
ReadonlyFloat: 832-bit floating-point number.
ReadonlyS16: 2Signed 16-bit integer.
ReadonlyS32: 4Signed 32-bit integer.
ReadonlyS64: 6Signed 64-bit integer.
ReadonlyS8: 0Signed 8-bit integer.
ReadonlyString: 11String; provided for user code, not scalar widgets.
ReadonlyU16: 3Unsigned 16-bit integer.
ReadonlyU32: 5Unsigned 32-bit integer.
ReadonlyU64: 7Unsigned 64-bit integer.
ReadonlyU8: 1Unsigned 8-bit integer.
Native scalar storage kinds; Bool and String are not scalar-widget types.