Bug with PropConfig types

[Rogin Farrer]

  Property 'fontSmoothing' is incompatible with index signature.
    Type '{ readonly property: "-webkit-font-smoothing"; }' is not assignable to type 'true | PropertyConfig'.

re-creation:

const system = createSystem();

system({
  fontSmoothing: {
    property: '-webkit-font-smoothing'
  }
})