How can I control my font?

I needed to learn to use PGraphics to achieve what I wanted in my code - scrolling text across the screen and the ability to "graffiti" it too".

However, since re-writing, my font, size, boldness etc won't change!

In my non-PGraphics code, I used

font = createFont("CourierNewPS-BoldMT-48", 44, true);

However, in my new code, it doesn't seem to use the values that 'font' has.

My new code is (sorry for the length - I have no idea where the font code should be)

import ddf.minim.spi.*;
import ddf.minim.signals.*;
import ddf.minim.*;
import ddf.minim.analysis.*;
import ddf.minim.ugens.*;
import ddf.minim.effects.*;
// import necessary libraries to play sound effect
String[] tickerText =
{
  "children were some of the greatest victims", "I was a child soldier",
// ....
};

Minim minim;
AudioPlayer sound1; // variable name
AudioPlayer sound2;
PGraphics pg;
PFont font; //declare PFont object called font
PImage background;
float x; // location of text on x axis
int index = 0;


void setup() {

  size(615, 762, P2D);

  font = createFont("CourierNewPS-BoldMT-48", 44, true);
  background = loadImage ("background_Text_Image.JPG"); // load background image
  minim = new Minim(this); //define construction
  sound1 = minim.loadFile("Children_Playing_Sound.mp3");
  sound1.loop(); // is looped

  pg = createGraphics(width, height, P2D);
  pg.beginDraw();
  pg.background(background); // draw background as imported image
  pg.endDraw();

  font = createFont("CourierNewPS-BoldMT-48", 44, true);

  x = 0; // the int x is used as the entry point for the text scrolling in
}

void draw() {
  if (mousePressed) { //function activated by mouse
    pg.beginDraw();
    pg.line(mouseX, mouseY, pmouseX, pmouseY);
    pg.stroke(random(255), random(255), random(255)); // stroke changed to random RBG values, each with a max of 255
    pg.strokeWeight (random(4, 8)); // random stroke weight, with a min of 4 and max of 8 pixels
    pg.endDraw();
  }
  background( pg.get() );
  textFont(font);
  fill(255,0,0); //sets colour of font, red
  text(tickerText[index], x, height/2); //location of text on x axis - in this case mid-way


  x = x - 1;
  float w = textWidth(tickerText[index]); // calculates the width of the text string - necessary for knowing when the text leaves the screen
  if (x < -w) { // when x moves completely off the screen new text appears
    x = width;
    index = (index + 1) % tickerText.length;

   }
}

Thank you in advance