utils.py

import base64
import streamlit as st


def set_background(image_file):
    """
    This function sets the background of a Streamlit app to an image specified by the given image file.

    Parameters:
        image_file (str): The path to the image file to be used as the background.

    Returns:
        None
    """
    with open(image_file, "rb") as f:
        img_data = f.read()
    b64_encoded = base64.b64encode(img_data).decode()
    style = f"""
        <style>
        .stApp {{
            background-image: url(data:image/png;base64,{b64_encoded});
            background-size: cover;
        }}
        </style>
    """
    st.markdown(style, unsafe_allow_html=True)