util.py

import base64

import streamlit as st
def set_background(image_file):
    with open(image_file, "rb") as f:
        img_data = f.read()
    b64_encoded = base64.b64encode(img_data).decode()
    style = f"""
        <style>
        .stApp {{
            background: rgba(255, 255, 255, 0); /* Adjust the last value for transparency */
            background-image: url(data:image/png;base64,{b64_encoded});
            background-size: cover;
            background-blend-mode: lighten; /* Adjust blend mode as needed */
        }}
        </style>
    """
    st.markdown(style, unsafe_allow_html=True)


def set_sidebar_background(image_file):
    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.sidebar.markdown(style, unsafe_allow_html=True)