docs: function maybeCopyIcons(options, appPath, callback) {
    if (!options.icon) {
      callback();
      return;
    }
  
    if (options.platform === 'darwin' || options.platform === 'mas') {
      callback();
      return;
    }
  
    // windows & linux
    // put the icon file into the app
    const destIconPath = path.join(appPath, 'resources/app');
    const destFileName = `icon${path.extname(options.icon)}`;
    copy(options.icon, path.join(destIconPath, destFileName), (error) => {
      callback(error);
    });
  }