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Credits & Attribution
ClassPanel is committed to using only free, open-source, or permissively-licensed assets. Here we credit everything we've used from third parties.
🔤 Typography
| Asset | Source | License | Used For |
|---|---|---|---|
| Inter Variable | rsms.me/inter | OFL 1.1 | Primary UI typeface across all pages |
| System UI monospace stack | Operating system built-in | Built-in | Timer digit display on all timer pages |
🔊 Audio
| Asset | Source | License | Used For |
|---|---|---|---|
| Timer alarm / fanfare tones | Generated via Web Audio API (no external file) | Procedural / No license needed | Countdown finish alert on all timer tools |
| UI click/tick sounds | Generated via Web Audio API oscillators | Procedural / No license needed | Button feedback, start/pause interactions |
🎨 Visual Assets & Animations
| Asset | Source | License | Used For |
|---|---|---|---|
| Tool Cards & Header Icons | Flaticon (created by Freepik & various artists) | Flaticon License (With Attribution) | Homepage tool cards, category representations & tool header badges |
| UI Vector Icons & Controls | Original SVG icons & Lucide-style symbols | CC0 / MIT | Play, pause, reset, projector, mute, and navigation controls |
| All animations (stars, bubbles, flames, etc.) | Original CSS keyframe animations | Original work by ClassPanel | All themed timer sub-pages |
| Confetti animation | Original canvas-based implementation | Original work by ClassPanel | Winner celebration on race timers and classroom timers |
| SVG icon set (UI controls) | Original SVG paths | Original work by ClassPanel | Play, pause, reset, fullscreen, sound control buttons |
⚙️ Software Libraries & Frameworks
| Library | Source | License | Used For |
|---|---|---|---|
| Vanilla JavaScript (no frameworks) | — | N/A | All interactive tool logic (timers, pickers, etc.) |
| Web Audio API | W3C Web Standard | W3C Standard | Procedurally generated sound effects |
| CSS Custom Properties / Variables | W3C Web Standard | W3C Standard | Design system, dark/light theme switching |
| requestAnimationFrame API | W3C Web Standard | W3C Standard | Smooth racer animation on all race timer themes |
📦 Third-Party Services
| Service | Provider | Purpose |
|---|---|---|
| Analytics | Google Analytics (GA4) | Anonymous page-view statistics |
| User Behaviour Analytics | Microsoft Clarity | Session analytics and heatmaps for UX improvement |
| Web Fonts CDN | Self-hosted / System fonts | Inter font delivery |
No attributions are legally required for any visual or audio asset used on ClassPanel — all animations are original CSS/canvas work, all sounds are procedurally generated via Web Audio API, and all emojis are Unicode standard characters. This page is maintained voluntarily for transparency.
If you believe any asset on this site requires attribution that hasn't been provided, please contact us and we'll address it immediately.