code: function generateFonts(src, dest) {
    return new Promise((resolve, reject) => {
      const startTaskName = swlog.logTaskStart(`copying ${src} fonts`);
      let fileCount = 0;
  
      const filterFiles = (stat, filepath, filename) => {
        if (stat === 'file' && path.extname(filepath) === '.md') {
          swlog.logTaskAction('Ignore', filename, 'gray');
          return false;
        }
  
        fileCount += 1;
        return true;
      }
  
      copydir(src, dest, filterFiles, err => {
        if (err) {
          reject(`Error! ${err}`);
        } else {
          swlog.logTaskAction('Copied', `${fileCount} font files`)
          swlog.logTaskEnd(startTaskName);
          resolve();
        }
      });
    })
  }
docs: ------------------------------------- Main ------------------------------------- 
  Generate fonts for a theme
  @param {String} src - The source path
  @param {String} dest - The destination path
  @returns {Promise}