Personally, I'm happy to see the author focusing on core features. There's already plenty of amazing tools which allow you to print.
Since you're just dealing with text files, the easiest solutions would probably be to open the text file on a modern web browser. All modern browsers support printing as far as I'm aware.
If you want syntax highlighting, you can use a tool like highlight [0] or source-highlight [1] to generate an HTML page, which you then open and print with your browser.
Comments
Personally, I'm happy to see the author focusing on core features. There's already plenty of amazing tools which allow you to print.
Since you're just dealing with text files, the easiest solutions would probably be to open the text file on a modern web browser. All modern browsers support printing as far as I'm aware.
If you want syntax highlighting, you can use a tool like highlight [0] or source-highlight [1] to generate an HTML page, which you then open and print with your browser.
[0] http://www.andre-simon.de/doku/highlight/en/highlight.php
[1] https://www.gnu.org/software/src-highlite/