根据flask中SQL表的值更改图标颜色

from flask import Flask, render_template
from flask_sqlalchemy import SQLAlchemy

app = Flask(__name__)
app.config['SQLALCHEMY_DATABASE_URI'] = 'sqlite:///icons.db'
db = SQLAlchemy(app)

class Icon(db.Model):
    id = db.Column(db.Integer, primary_key=True)
    name = db.Column(db.String(50))
    color = db.Column(db.String(20))

@app.route('/')
def index():
    icons = Icon.query.all()
    return render_template('index.html', icons=icons)

@app.route('/update_color/<int:icon_id>/<color>')
def update_color(icon_id, color):
    icon = Icon.query.get(icon_id)
    icon.color = color
    db.session.commit()
    return 'Color updated successfully'

if __name__ == '__main__':
    db.create_all()
    app.run()

{% for icon in icons %}
    <i class="icon" style="color: {{ icon.color }}"></i>
{% endfor %}