forked from 1b-agent/fieldcraft-upstream
jyvikoandClaude Opus 5.5
34d3247d2c
The streamlines are now banded in the fringe colours along their length, as flow speed would be, with a thin dark halo and arrowheads. Two sweep in from the lower left, climb over the cube and run straight into the top face's mesh lines, narrowing to them, so the flow becomes the structure; one wraps around the cube. The small variant keeps the cube with one bold coloured streamline and one arrow. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
33 lines
2.4 KiB
Markdown
33 lines
2.4 KiB
Markdown
# FieldCraft application icon
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FieldCraft's mark is a cube in isometric view, covered by a structured hexahedral mesh, whose
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faces carry a banded colour fringe (blue to red, hottest at the front corner) as a stress or
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temperature result would. Streamlines coloured by flow speed in the same bands, with arrowheads,
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sweep in from the lower left: two run into the top face and narrow into its mesh lines, so the
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flow becomes the structure, and one wraps around the cube. Its faces are separated by
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transparent gaps rather than painted edge lines, so the backdrop shows through them in every
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appearance. It is original artwork, attributed in `ATTRIBUTION.md`, and shares the Craft
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family's layout (rounded-square backdrop, isometric floor grid, lit top faces).
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Everything here is generated by `cargo xtask app-icon` (`xtask/src/app_icon.rs`), which computes
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the geometry and draws it with VectorCraft's command-line tool (`VECTORCRAFT_CLI`, else
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`vectorcraft-cli` on the PATH). Change the recipe there and rerun it; do not edit the exports by
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hand. It runs on macOS (sips, iconutil, `xcrun actool`) with ImageMagick (`magick`) installed.
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| File | What it is |
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|---|---|
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| `icon.vectorcraft`, `icon.svg`, `icon.png` | The full icon on its backdrop, 1024 × 1024 |
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| `icon-small.vectorcraft`, `icon-small.svg`, `icon-small.png` | Small-size artwork used at 16–32 px: the fringe cube and one bold coloured streamline with an arrowhead, no mesh or floor grid, faces edge to edge |
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| `icon.iconset/`, `icon.icns` | macOS iconset (sips) and its iconutil compilation |
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| `icon.ico` | Windows icon, 16–256 px |
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| `FieldCraft.icon/` | Icon Composer document: floor grid (Default and Dark), flow behind, cube (faces and mesh) and flow in front layers, each scaled to 90% |
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| `layers/*.vectorcraft` | Editable sources of the Icon Composer layers |
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| `Assets.car` | `actool` compilation of `FieldCraft.icon` for macOS 26 and later (needs Xcode 26 or later; the task skips it with a note otherwise) |
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The desktop app embeds `icon.iconset/icon_128x128@2x.png` as its window and Dock icon
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(`apps/fieldcraft/src/main.rs`). The release packages (docs/releasing.md) use the rest:
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`packaging/macos/package.sh` copies `Assets.car` and `icon.icns` (as `FieldCraft.icns`) into
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`FieldCraft.app/Contents/Resources`, named by `CFBundleIconName` / `CFBundleIconFile`;
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`apps/fieldcraft/build.rs` embeds `icon.ico` in `fieldcraft.exe`; and
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`packaging/linux/package.sh` installs the iconset PNGs as the hicolor icons.
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