def get_login_theme():
    """Load a custom login theme (e.g. snow)"""
    today = datetime.now().date()
    if today.month == 12 or today.month == 1:
        # Snow
        return {"js": "themes/snow/snow.js", "css": "themes/snow/snow.css"}

    if today.month == 3 and (14 <= today.day <= 16):
        return {"js": "themes/piday/piday.js", "css": "themes/piday/piday.css"}

    return {}
Load a custom login theme (e.g. snow)