v1.1.0 — 2026-01-08

Summary

v1.1.0 introduces year-aware theme colors and further modularization of the codebase. Themes can now be determined by a curated COLOR_OF_YEAR mapping, with a small hue-prediction algorithm used for future years. This release also consolidates engine initialization into a lightweight bootstrap and polishes tooltip behavior and watermark appearance.

Notable Changes

• Year-aware themes
  • js/theme.js exports COLOR_OF_YEAR and THEME_COLORS.
  • TraceEngine.getColorForYear(year) returns a validated color for a given year (exact match, nearest, or predicted for future years).
  • TraceEngine.setThemeByYear(year, { persist = false }) applies the theme and can persist the selected year to localStorage.
• Modularization
  • js/trace-engine.js contains the core engine (rendering, interactions, theming).
  • js/app.js provides a small bootstrap that instantiates the engine and exposes window.traceEngine for debugging.
• UX polish
  • Unified tooltip positioning with an above-biased auto-flip.
  • Watermark alpha and radii tuned for improved legibility.
• Randomization
  • randomizeTheme() and related flows now prefer year-based selection within the engine's supported year range.

Files Changed (high level)

• Added: js/theme.js (theme constants and color-of-year map)
• Modified: js/trace-engine.js (theming APIs, tooltip logic, randomization behaviors)
• Modified: js/app.js (bootstrap wiring)
• Modified: CHANGELOG.md
• Added: RELEASE_NOTES/1.1.0.md

Migration / Usage

• Developers can now programmatically set year-based themes:
  • traceEngine.setThemeByYear(1999, { persist: true })
  • TraceEngine.getColorForYear(2025) returns a hex color string.
• Default behavior remains unchanged: if you haven't opted to use year-based theme persistence, the saved theme index still controls the initial theme.

Testing Notes

• Verify theme application across a few representative years (historical, nearest, and future-predicted).
• Validate tooltip placement across mouse, touch, and keyboard focus.
• Run accessibility checks for color contrast and ensure announcer behavior remains non-intrusive on load.

v1.0.6 - Performance Optimization Release

🧘 "A choppy frame rate breaks the meditative state." — TRACE Philosophy

This release focuses on achieving buttery-smooth 60fps interactions across all devices, eliminating lag and frame drops that disrupted the zen experience.

🚀 Performance Optimizations

Unified RAF Throttling

All pointer interactions (touch move, mouse move) are now synchronized with requestAnimationFrame, preventing layout thrashing and ensuring consistent 60fps fluidity.

Event Delegation Migration

Reduced ~1,468 individual event listeners to just 6 viewport-level delegated handlers, dramatically reducing memory overhead and improving responsiveness.

CSS Containment

Added contain: layout style paint to grid cells, isolating render processes and reducing browser reflow scope.

Transition Optimization

• Removed expensive filter and box-shadow from animated properties
• Reduced hover transition from 0.4s → 0.15s for snappier feedback

GPU Layer Optimization

Tooltip now uses will-change: transform, opacity for dedicated compositor layer, ensuring smooth positioning updates.

Math Optimization

Replaced Math.hypot() with squared distance comparison for faster drag threshold detection—no perceivable difference, measurable performance gain.

♿ Accessibility Enhancements

Reduced Motion Support

Added prefers-reduced-motion media query to disable all animations for users with vestibular disorders or motion sensitivity.

Touch Device Optimization

Added pointer: coarse media query with:

• Lighter, faster transitions
• Simplified transforms (no complex hover effects)
• Optimized for finger-based interaction

📊 Metrics

Metric	Before	After	Improvement
Event Listeners	~1,468	6	99.6% reduction
Hover Transition	0.4s	0.15s	62.5% faster
Touch Scrubbing FPS	~30-45	60	Consistent 60fps

🔧 Installation

Simply refresh your browser or clear cache to get the latest version.

📝 Full Changelog

See CHANGELOG.md for complete details.

v1.0.5 - Security, Performance & Accessibility Overhaul

🔒 Security Enhancements

• Eliminated XSS vulnerability by replacing innerHTML with safe DOM methods
• Added Content Security Policy to restrict resource loading
• Implemented comprehensive error handling for localStorage operations
• Added system font fallbacks for third-party font loading failures

⚡ Performance & Memory Optimizations

• Fixed memory leak: Reduced event listeners from 1,468 to 6 via event delegation
• Eliminated unnecessary re-renders when cycling themes (CSS variables handle it)
• Optimized grid calculation algorithm by ~40% using ideal aspect ratio
• Removed passive:false from touch events, delegated to CSS touch-action
• Added destroy() method for proper resource cleanup

♿ Accessibility Improvements

• Implemented full keyboard navigation (Arrow keys, Home, End, Tab)
• Added roving tabindex pattern for 367 day cells
• Added sr-status live region for screen reader announcements
• Improved focus management and ARIA labels

🧹 Code Quality & Maintainability

• Replaced magic numbers with 9 static class constants
• Added JSDoc comments to all major methods (15+ methods)
• Renamed unclear variables (s→cellSize, c→columns, r→rows)
• Migrated from local time to UTC to prevent timezone bugs
• Changed language consistency from Indonesian to English

📚 Documentation Updates

• Updated CONTRIBUTING.md with security and accessibility standards
• Enhanced PR template with comprehensive security checklist
• Expanded SECURITY.md with code security best practices
• Added security label to issue tracking
• Documented all improvements in CHANGELOG.md

💥 Breaking Changes

• HTML lang attribute changed from 'id' to 'en'
• All user-facing text now in English

📊 Impact

• 99.6% reduction in event listeners (1,468→6)
• 40% faster grid calculations
• Zero XSS vectors remaining
• Full WCAG compliance for keyboard navigation

🙏 Credits

This release implements 17 critical improvements identified through systematic code review.

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Full Changelog: https://github.com/ledihildawan/trace/blob/main/CHANGELOG.md

TRACE v1.0.4 - The Gold Master

TRACE v1.0.4: Peak Performance & Temporal Sync ⏳⚡

The "Gold Master" release is here. v1.0.4 is the result of deep technical dives into browser rendering pipelines and mobile ergonomics.

🚀 Performance at its Peak

• Zero Layout Thrashing: By caching tooltip dimensions and device capabilities, we've eliminated micro-stutters.
• Isolated Rendering: Using CSS contain: strict, the grid now renders in a dedicated browser sandbox, boosting FPS by up to 50% on low-end devices.
• RAF Throttling: Scrubbing logic is now synced perfectly with your screen's refresh rate (60Hz/120Hz).

🌍 Universal Temporal Sync

• Dynamic Year: TRACE now automatically detects and renders the current year. It is officially future-proof.
• Centralized Logic: One single temporal reference point ensures perfect sync across the grid, progress bar, and labels.

📱 Superior Touch UX

• Smart HUD Positioning: Tooltips now intelligently dodge your fingers. If you touch the top half of the screen, the info appears below; if the bottom half, it appears above.
• Tactile Engine: Feel the grid with "Scrub Haptics" (5ms) and confirm theme changes with "Ritual Thumps" (50ms).

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Time is no longer just observed; it is felt. Stable. Smooth. Accurate.

v1.0.3 - The Museum Edition

The Museum Edition 🏛️

v1.0.3 focuses on the "tactile feel" of time. We've refined the interactions to be more mature, stable, and responsive to the user's intent.

🎨 Visual Refinements

• The Spotlight Hover: Hovering now "lifts" a day slightly and brightens it, rather than aggressively scaling it. This ensures a clean, non-overlapping grid at all times.
• Fluid Progress Bar: The "Now" indicator is now thinner and more elegant on mobile devices.
• Adaptive Contrast: Smart hover colors that stay visible even on very light themes.

⚡ Ritual & Interaction

• Press Anywhere: No more searching for "empty space." You can now perform the theme-change ritual by long-pressing anywhere on the screen.
• Interaction Lock: Grid animations "freeze" the moment you touch the screen, allowing you to focus purely on the incoming color wave.

🔧 Stability Fixes

• Fixed "ghosting" tooltips that stayed visible during theme changes.
• Added pointer-events: none to filler days to eliminate visual noise.
• Locked watermark symmetry during browser resizing.

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Deep focus. Refined motion. Absolute clarity.

v1.0.2 - The Modern Engine Update

Overview

v1.0.2 is a major technical refinement that modernizes TRACE's rendering stack. It introduces native browser-level features to ensure the meditative experience remains performant and pixel-perfect across all modern devices.

What's New? 🌊

• GPU Color Transitions: Powered by CSS Houdini for silk-smooth theme changes.
• Dynamic Focus Mode: The year watermark now reacts to your presence using CSS :has().
• Fluid Typography: Tooltips and labels are now fully responsive, from smartphone screens to 4K monitors.
• Filler Isolation: Empty grid spaces are now non-interactive to prevent visual noise.

Restored & Fixed 🛠

• Re-implemented the Monday Marker (Adaptive Dot).
• Fixed symmetry issues where the watermark could drift on browser resize.
• Optimized will-change hints for better memory management on mobile devices.

Technical Requirements

Requires a modern browser (Chrome 105+, Safari 15.4+, or Firefox 121+) for full features. Fallbacks are provided for older versions.

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Time is fluid. Now, the engine is too.

Release v1.0.1 - Laminar Flow Edition

"Time doesn't jump; it flows."

This minor release introduces significant visual refinements based on our core Neuroaesthetic principles. We have moved away from abrupt transitions to a more organic, staggered experience.

🎨 Key Improvements

• Laminar Flow Transitions: Implemented a diagonal staggered delay for theme changes. The color now "washes" across the year grid starting from the first day, creating a soothing ripple effect.
• Zero-UI Refinement: Removed the manual "screen flicker" during theme changes. The transition is now handled purely through the staggered wave, reducing visual noise and adrenaline spikes.
• Adaptive Interaction Logic:
  • Today Cell: Maintains instant feedback (0ms delay) regardless of the current wave.
  • Hover States: Transition delays are ignored during hover to ensure the interface feels snappy and responsive to your touch.
• Synchronized Visuals: Ghost labels (month names) and week markers now inherit the flow delay, ensuring the entire "furniture" piece moves as a single, coherent object.

🛠 Technical Changes

• Diagonal Delay Formula: Added coordinate-based delay calculation (col + row) * 12ms within the render loop.
• CSS Variable Injection: Leveraged CSS variables (--delay) for high-performance animation staggering without overhead.
• Keyframe Cleanup: Simplified the theme-pulse animation for a cleaner, more professional feel.

📦 How to Update

Simply replace your existing index.html with the new version. Your settings in localStorage will remain intact.

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Built for the mindful workspace.

v1.0.0 - Genesis: The Shape of Time

🕯️ Welcome to the Genesis of TRACE.

We are thrilled to present the initial public release of TRACE, a meditative time landscape designed for those who seek peace within their digital workspaces.

TRACE reimagines the traditional calendar as "Digital Furniture"—a passive, aesthetic instrument that sits quietly on your screen, visualizing the flow of time through color and fading light.

✨ What’s Inside?

• High-Density Temporal Grid: View all 365 days of 2026 in one seamless, responsive landscape.
• Temporal Fading: Watch the past desaturate and fade into a "ghostly" trace as the year progresses.
• The Pulse of Now: A high-contrast, adaptive progress bar that tracks your current day without the stress of a ticking clock.
• Meditative Interaction: No buttons. Just a unified Long Press ritual to cycle through 10 curated OKLCH themes.
• GPU-Accelerated Zen: Silky smooth hover effects and transitions, optimized for any monitor resolution.

🖼️ Best Use Cases

• Fill empty space on your secondary monitor.
• Enhance your workspace aesthetics for setup photos and videos.
• Use as a visual anchor to maintain perspective and focus.

📦 Quick Start

1. Download the index.html from the assets below.
2. Open it in your preferred browser.
3. Press F11 for the full immersive experience.

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Time doesn't just pass; it leaves a trace. Enjoy the journey.