code: function defaultDestRewriter(svgPathObj, innerPath, options) {
    let fileName = svgPathObj.base;
    if (options.fileSuffix) {
      fileName.replace(options.fileSuffix, '.svg');
    } else {
      fileName = fileName.replace('.svg', '.js');
    }
    fileName = fileName.replace(/(^.)|(_)(.)/g, (match, p1, p2, p3) => (p1 || p3).toUpperCase());
    return path.join(innerPath, fileName);
  }
docs: /*
  Return path to write file to inside outputDir.
  
  @param {object} svgPathObj
  path objects from path.parse
  
  @param {string} innerPath
  Path (relative to options.svgDir) to svg file
  e.g. if svgFile was /home/user/icons/path/to/svg/file.svg
  options.svgDir is /home/user/icons/
  innerPath is path/to/svg
  
  @param {object} options
  @return {string} output file dest relative to outputDir