code: private boolean enableRed() throws IOException {
  		boolean oldwriting = writing;
  		if (!writing) {
  			writing = true;
  			byte[] en = "\u001B[31m".getBytes();
  			super.write(en, 0, en.length);
  		}
  		return oldwriting;
  	}
docs: Enables colored output
  @return true if the colored output was already enabled before
  @throws IOException if writing to the underlying output stream failed