I'll build a powerful privacy surveillance detection dashboard with a black background and pastel gradient buttons. Let me update the theme and create the full app.

I've built TraceGuard, a comprehensive open-source digital surveillance detection app with your requested black background and pastel gradient buttons. Here's what it includes:

Features:

• Overview Dashboard - Real-time scan visualization with animated rings, stats cards showing trackers, cookies, DNS leaks, and permissions
• Browser Fingerprinting - Detects canvas fingerprints, WebGL renderer, audio context, fonts, hardware specs, and calculates uniqueness score
• Cookie Analysis - Categorizes cookies as essential, analytics, advertising, or tracking with full details
• Network Request Monitoring - Logs all outgoing connections, identifies tracker requests, shows blocked vs allowed
• Third-Party Tracker Detection - Lists companies like Google Analytics, Facebook Pixel, DoubleClick with data they collect
• Device Permissions Audit - Shows granted/denied permissions (geolocation, camera, microphone, notifications)
• DNS Leak Detection - Identifies DNS resolvers and potential privacy leaks
• Activity Timeline - Chronological log of all surveillance events with severity levels

Design:

• Pure black background (oklch(0.08 0 0))
• Pastel gradient buttons in pink, cyan, green, purple, and orange variants
• Dark card surfaces with subtle borders
• Cybersecurity/hacker aesthetic with scanning animations
• Responsive layout with collapsible sidebar for mobile
• Open source branding with GitHub integration

The app uses mock data to demonstrate all detection capabilities. In a real deployment, you'd integrate actual browser APIs to collect fingerprinting data, intercept network requests, and analyze cookies.