glowing custom font

my_application_controller.rb

# from BubbleWrap
def rgba_color(r, g, b, a=1)
  UIColor.colorWithRed((r/255.0), green:(g/255.0), blue:(b/255.0), alpha:a)
end


class MyApplicationController < UIViewController

  def viewDidLoad
    font = UIFont.fontWithName('Inconsolata', size:20)
    color = rgba_color(255, 255, 255)

    @label = UILabel.new
    @label.font = font
    @label.textColor = color
    @label.text = 'Example text'
    @label.frame = [[0, 0], [320, 30]]  # play with this frame size, i'm making these numbers up
    @label.setBackgroundColor(UIColor.clearColor);

    shadow_color = rgba_color(200, 200, 255)
    @label.layer.shadowColor = shadow_color.CGColor;
    @label.layer.shadowOffset = [2, 2];
    @label.layer.shadowRadius = 2.0;
    @label.layer.shadowOpacity = 1.0;
    @label.layer.masksToBounds = false;

    view.addSubview(@label)
  end
end