hexo.extend.filter.register("theme_inject", function (injects) {
  injects.head.file("sakura", "views/sakura.pug", {}, { cache: true });
});

script.
      window.sakuraConfig = {
        sakura: 30,
        xSpeed: 0.5,
        ySpeed: 0.5,
        rSpeed: 0.03,
        direction: "TopRight",
        zIndex: -1
      };
script(src="https://cdn.jsdelivr.net/gh/minz71/sakura-rain/sakura-rain.js" defer)