I have created a python script to create thumbnail for me... Here I'm sharing the source code...

from PIL import Image, ImageDraw, ImageFont

def generate_thumbnail_with_text(width, height, background_color, text, text_color, font_path, output_file):
    # Create a new image with the specified dimensions and background color
    image = Image.new('RGB', (width, height), background_color)

    # Initialize the drawing context
    draw = ImageDraw.Draw(image)

    # Load a font (you can customize the font size and style)
    font = ImageFont.truetype(font_path, size=73)

    # Calculate text size and position
    # text_width, text_height = 10.10, 10.23
    text_width = width * 0.8
    text_height = height * 0.8
    x = (width - text_width) / 2
    y = (height - text_height) / 2

    # Draw the text on the image
    draw.text((x, y), text, fill=text_color, font=font)

    # Save the image to the specified output file
    image.save(output_file)

if __name__ == "__main__":
    # Thumbnail dimensions
    width = 1600
    height = 840

    # Background color (RGB tuple)
    background_color = (238, 255, 204, 1)  # Light Green

    # Text to be added
    text = "Create Simple Thumbnail \nfor your Posts-with Python!"

    # Text color (RGB tuple)
    # text_color = (90, 80, 80, 1)  # Gray
    text_color = (40, 98, 252, 1)  # Blue

    # Font file path (you need to specify the path to a TrueType font file)
    font_path = "Poppins/Poppins-Bold.ttf"

    # Output file path
    output_file = "thumbnail.png"

    # Generate the thumbnail with text
    generate_thumbnail_with_text(width, height, background_color, text, text_color, font_path, output_file)
    print(f"Thumbnail with text generated: {output_file}")

Github: github.com/sannjayy/py-simple-thumbnail