The following code is flagged as dead (since it's *replacing* rather than updating the existing Object):
https://github.com/mozilla/pdf.js/blob/4483cba72410027acf46630ebf252ae529704476/src/core/xfa/template.js#L2336-L2339
according to the alert in https://github.com/mozilla/pdf.js/security/code-scanning/103?query=ref%3Arefs%2Fheads%2Fmaster

Looking at the surrounding code, I can see a couple of possibilities here:
 1. This is indeed just dead code, which should be removed.
 2. The code should be moved up, and placed just *above* the previous block instead.
 3. There should be other, more invasive, changes made to this code...

/cc @calixteman Which solution is correct here?
Assuming it's either option 1 or 2, I can submit a patch to fix this.
style.backgroundColor = "white";
      }
    }
    if (parent instanceof Rectangle || parent instanceof Arc) {
      propName = altPropName = "fill";
      style.fill = "white";
    }
    for (const name of Object.getOwnPropertyNames(this)) {
      if (name === "extras" || name === "color") {
        continue;
      }
      const obj = this[name];
      if (!(obj instanceof XFAObject)) {
        continue;
      }
      const color = obj[$toStyle](this.color);
      if (color) {
        style[color.startsWith("#") ? propName : altPropName] = color;
      }
      return style;
    }
    if (this.color && this.color.value) {
      const color = this.color[$toStyle]();
      style[color.startsWith("#") ? propName : altPropName] = color;
    }
    return style;
  }
}
class Filter extends XFAObject {