Opacity Adjuster by Vallarasu Kanthasamy

🌐 Opacity Adjuster by Vallarasu Kanthasamy Take full control of your web-browsing experience with Opacity Adjuster by Vallarasu Kanthasamy—a premium, state-of-the-art screen dimmer and contrast controller designed to reduce eye strain, improve readability, and support seamless dark mode transitions. Whether you are working late at night, comparing designs, or simply looking to dim bright webpages, Opacity Adjuster provides a fluid, elegant, and highly performant solution. Key Features ✨ Fluid Opacity Slider: Instantly adjust any website's transparency level from 0% to 100% with a highly responsive, custom range slider. 🌓 Smart Backdrop Auto-Detection (Anti-Washout): Standard opacity tools wash out dark websites by fading them into a harsh white browser background. Opacity Adjuster dynamically detects the webpage's native color theme (such as YouTube's slate black or GitHub's dark blue) and sets it as the backdrop, fading elements natively into their own color profile. ⏳ Persistent Background Timers: Set an auto-reset countdown timer (up to 3 hours). Powered by Manifest V3 background service worker alarms, the timer will automatically restore the page to 100% opacity when it expires—even if you close the extension popup window. ☀️/🌙 Dual UI Themes: Customize the extension popup interface to match your preference. Seamlessly toggle between a modern Indigo Light theme and a premium Glassmorphic Dark theme. 🔗 Smart Path Normalization: Your settings are synchronized and saved by pathname (ignoring hashes and URL search query parameters), ensuring your custom settings persist as you navigate through different pages of the same site. 🛠️ How to Use Click the extension icon in your Chrome toolbar. Drag the slider to find your preferred website transparency or dimming level. Choose a Backdrop Mode: Auto: Automatically detects the webpage theme. Dark: Forces elements to fade into pure black (ideal for night reading). Light: Forces elements to fade into white. Optionally, select a timer duration from the dropdown and click Start to automatically restore full opacity later. Click Reset Opacity at any time to return the website to default. 🛡️ Privacy & Performance First Zero Remote Scripts: Fully compliant with Chrome Manifest V3 Security Policies—no external trackers or scripts are loaded. Ultra-lightweight: Zero performance overhead. Styling calculations are optimized to prevent page rendering lag. No Permissions Required: Respects your privacy; only relies on local tab scripting to apply styling overlays.