Code Editor for app.py

import streamlit as st
import numpy as np

# Set page config to dark theme
st.set_page_config(page_title="My App", layout="wide")

# Custom CSS to change header color and text color
st.markdown("""
    <style>
    .main {
        color: white;
    }
    .stMarkdown {
        color: white;
    }
    h1 {
        color: #0068c9;
    }
    </style>
    """, unsafe_allow_html=True)

# Header
st.title("My App")

# Generate some random data for the dropdown
random_options = [f"Option {i}" for i in range(1, 11)]
random_values = np.random.randint(1, 100, size=10)
options_dict = dict(zip(random_options, random_values))

# Create dropdown
selected_option = st.selectbox(
    "Select an option:",
    options=random_options
)

# Display the selected value
st.write(f"The value for {selected_option} is: {options_dict[selected_option]}")