readJsFile = function(file, onComplete, ...callbackArgs) {
    fs.readFile(path.relative(process.cwd(), file), 'utf8', function(err, code) {
        if (err) {
            return console.error(err);
        }

        onComplete(file, code, ...callbackArgs);
    });
}
@todo Add features from the Non-CLI side of this module such as:
2. Custom abstraction level
3. Presentation mode
4. Defined colour schemes (default, B&W, blurred, light)
5. Custom colour scheme
6. Custom style
7. Flow tree modifications (iterative methods treated as loops, ...)
8. Custom modifier
9. Debugging
@todo Continue 3.