docs: public static boolean isOutsideRange(int startFrame, int endFrame, int frameNumber) {
      if (startFrame == -1 || endFrame == -1) {
        // This means nothing should pass.
        return true;
      }
      boolean outsideRange;
      if (startFrame <= endFrame) {
        outsideRange = frameNumber < startFrame || frameNumber > endFrame;
      } else {
        // Wrapping
        outsideRange = frameNumber < startFrame && frameNumber > endFrame;
      }
      return outsideRange;
    }