v0.5.1 — fitToWidth internal refactor

What changed

Changed

• fitToWidth internal implementation replaced: dropped the custom SwiftUI Layout protocol in favour of a GeometryReader + ScrollView composition. Behaviour and public API are unchanged — existing .fitToWidth(minCellSize:) call sites require no updates.

Install

```swift
.package(url: "https://github.com/jacklv-coder/HeatmapKit", from: "0.5.0")
```

Full changelog: https://github.com/jacklv-coder/HeatmapKit/blob/main/CHANGELOG.md

v0.5.0 — Adaptive layout & demo app

First proper GitHub Release. v0.1–v0.4 shipped via tags only — see CHANGELOG.md for the full history.

✨ Highlights

• .fitToWidth(minCellSize:) adaptive layout — cells now size to the container automatically, with horizontal-scroll fallback only when even the floor doesn't fit. Narrow renders snap to whole-week boundaries via .scrollTargetBehavior(.viewAligned).
• Runnable iOS demo app under Demo/HeatmapKitDemo — palette switching, tooltips, accessibility labels, share-as-image, plus a Streaks-style Boards tab built on CalendarHeatmap.
• github.com palette parity — built-in .green now mirrors github.com's light/dark variants exactly. The other five palettes also pick up adaptive light/dark shades.
• Today highlight off by default — matches github.com. Opt back in with .todayHighlightColor(.primary).

📦 Install

```swift
.package(url: "https://github.com/jacklv-coder/HeatmapKit\", from: "0.5.0")
```

🔍 Pull requests in this release

• #5 — Demo app
• #6 — Adaptive palettes; `.green` matches github.com
• #7 — `todayHighlightColor` defaults to `nil`
• #8 — `.fitToWidth(minCellSize:)` width-aware layout
• #9 — Boards tab in demo
• #10 — Adaptive heatmap height fix

🙏 Thanks

Visual language patterned on GitHub's contribution graph; Boards demo inspired by Streaks.

Full changelog: https://github.com/jacklv-coder/HeatmapKit/blob/main/CHANGELOG.md#050--2026-05-01