List<BitmapFontCharacter> bitMapCharacters = new ArrayList<BitmapFontCharacter>();
for (int i = 0; i < chars.length(); i++) {
char c = chars.charAt(i);
// int charIndex = p5Font.index(c);
Glyph glyph = p5Font.getGlyph(c);
if (glyph != null){
PImage charImage = glyph.image;
int charWidth = glyph.width;
int charHeight = glyph.height;
int topExtend = glyph.topExtent;