<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Hello World!</title>
<meta http-equiv="Content-Security-Policy" content="script-src 'self' 'unsafe-inline';" />
<link rel="stylesheet" type="text/css" href="./styles.css">
</head>
<body>
<h1>Hello World!</h1>
<p>Current theme source: <strong id="theme-source">System</strong></p>
<button id="toggle-dark-mode">Toggle Dark Mode</button>
<button id="reset-to-system">Reset to System Theme</button>
<script src="renderer.js"></script>
</body>
</body>
</html>