zIndexSemantic

const zIndexSemantic: {
  base: {
     value: 0;
     unit: "none";
  };
  raised: {
     value: 1;
     unit: "none";
  };
  popup: {
     value: 200;
     unit: "none";
  };
  scrim: {
     value: 400;
     unit: "none";
  };
  floating: {
     value: 500;
     unit: "none";
  };
};