JTextPane has overlapping text when highlighted and scrolled upon

My issue is that whenever my JTextPane is highlighted by the user or the user scrolls, the text within the JTextPane overlaps itself many times and the color frequently changes.

I've tried looking for other answers but my current code allows the JTextPane to get added to a JScrollPane, which is added to a JLayeredPane which is then added to a class that extends JFrame

public class View extends JFrame {
    private static final long serialVersionUID = 1L;
    final Dimension SIZE = new Dimension(2661, 1663);

    /**
     * @return the pre-determined size of the JFrame
     */
    public Dimension getDimensionSize() {
        return SIZE;
    }

    public View(){
    setTitle("Warframe Alert/Invasion Tracker - Project 4");
    setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    setResizable(false);
    createPanel();
    pack();
    setLocation(0,0);
    setVisible(true);
    }

    public void createPanel(){
        JTextPane textPane = new JTextPane();
        Font font = new Font("Apple Casual", Font.PLAIN, 35);
        textPane.setEditable(false);
        textPane.setBackground(new Color(0, 200, 255, 50));
        textPane.setText(Content.getAlertText()); //Content class is a class that creates the content to show on the textPane
        textPane.setForeground(Color.black);
        textPane.setFont(font);

        JScrollPane scrollPane = new JScrollPane(textPane, JScrollPane.VERTICAL_SCROLLBAR_ALWAYS, JScrollPane.HORIZONTAL_SCROLLBAR_AS_NEEDED);
        scrollPane.setBounds(50, 50, 1331, 1331);

        JLabel background = new JLabel(new ImageIcon("..\\Project 4\\img\\bg.jpg"));
        background.setBounds(0, 0, 2661, 1663);

        JLayeredPane layeredPane = new JLayeredPane();
        layeredPane.setPreferredSize(getDimensionSize());
        layeredPane.add(background);
        layeredPane.add(scrollPane);

        this.getContentPane().add(layeredPane, BorderLayout.CENTER);
    }
}

Here is an image of the result I am getting:

As @MadProgrammer said, problem is with using the alpha parameter in the Color selection. Test the code below with each setBackground command commented out.

import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.Font;
import javax.swing.ImageIcon;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JLayeredPane;
import javax.swing.JScrollPane;
import javax.swing.JTextPane;
import javax.swing.text.AbstractDocument.Content;

public class View extends JFrame {

    private static final long serialVersionUID = 1L;
    private static final float DIM_WIDTH = 2661f;
    private static final float DIM_HEIGHT = 800; //R1663f;
    final Dimension SIZE = new Dimension(Math.round(DIM_WIDTH), Math.round(DIM_WIDTH));

    /**
     * @return the pre-determined size of the JFrame
     */
    public Dimension getDimensionSize() {
        return SIZE;
    }

    public View() {
        setTitle("Warframe Alert/Invasion Tracker - Project 4");
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        setResizable(false);
        createPanel();
        pack();
        setLocation(0, 0);
        setVisible(true);
    }

    public void createPanel() {
        JTextPane textPane = new JTextPane();
        Font font = new Font("Apple Casual", Font.PLAIN, 35);
        textPane.setEditable(false);
//        textPane.setBackground(new Color(0, 200, 255, 50));
        textPane.setBackground(new Color(0, 204, 255)); // web safe 
//        textPane.setText(Content.getAlertText()); //Content class is a class that creates the content to show on the textPane
        textPane.setText("1234567890\n1234567890\n1234567890\n1234567890\n1234567890\n1234567890\n1234567890\n1234567890\n1234567890\n1234567890\n1234567890\n1234567890\n1234567890\n1234567890\n1234567890\n1234567890\n1234567890\n1234567890\n1234567890\n1234567890\n1234567890\n1234567890\n1234567890\n1234567890\n1234567890\n1234567890\n1234567890\n1234567890\n1234567890\n1234567890\n1234567890\n1234567890\n1234567890\n1234567890\n1234567890\n1234567890\n1234567890\n1234567890\n1234567890\n");
        textPane.setForeground(Color.black);
        textPane.setFont(font);

        JScrollPane scrollPane = new JScrollPane(textPane, JScrollPane.VERTICAL_SCROLLBAR_ALWAYS, JScrollPane.HORIZONTAL_SCROLLBAR_AS_NEEDED);
        scrollPane.setBounds(50, 50, Math.round(DIM_HEIGHT * 0.8f), Math.round(DIM_HEIGHT * 0.8f));

        JLabel background = new JLabel(new ImageIcon("..\\Project 4\\img\\bg.jpg"));
        background.setBounds(0, 0, Math.round(DIM_WIDTH), Math.round(DIM_HEIGHT));

        JLayeredPane layeredPane = new JLayeredPane();
        layeredPane.setPreferredSize(getDimensionSize());
        layeredPane.add(background);
        layeredPane.add(scrollPane);

        this.getContentPane().add(layeredPane, BorderLayout.CENTER);
    }

    public static void main(String[] args) {
        new View();
    }
}