Files
backspace/scripts/gen-icons.README.md
T
Jannis Braun 81ad0292a5 fix(brand): close Task 3 spec gaps surfaced by code review
Three issues caught by the code review of scripts/gen-icons.mjs:

(1) Missing source SVG validation. Spec requires the script "refuses
to run if any source SVG is missing." Added an existsSync guard at the
top of main() that throws a targeted message rather than letting sharp
fail with a raw ENOENT.

(2) Summary table missing byte sizes. Spec says the summary prints
"each output, its size in pixels, its file size in bytes." trace() now
captures statSync().size; the printout has a size column with
human-readable formatting and a total at the end.

(3) writeMaskablePng's intermediate buffer used .png() without the
compressionLevel/palette options that every other render uses. Zero
functional impact (the buffer is only piped into composite, never
written to disk) but inconsistent and misleading. Aligned with the
rest of the script.

README: replaced 'git add -A' with explicit directory paths matching
the project's convention — the generator writes to a fixed set of
three directories and shouldn't accidentally stage unrelated
working-tree changes during a regen.

Plan updated to match the corrected code so Task 3's source-of-truth
stays consistent.
2026-04-27 14:29:05 +02:00

2.0 KiB

Icon Generator

Regenerates every brand artefact from assets/brand/*.svg:

  • macOS .icns, Windows .ico, Linux per-size PNGs (packages/desktop/build/)
  • Tray icons for all three platforms (packages/desktop/resources/)
  • Web favicons, PWA manifest icons, maskable, in-app logo.png (packages/web/public/icons/)

When to run

After changing any file under assets/brand/, or after bumping sharp, png-to-ico, or png2icons in the root package.json. Commit the diff in the same PR.

pnpm gen-icons
git status                       # review which files changed
git add packages/desktop/build/ packages/desktop/resources/ packages/web/public/icons/
git commit -m "chore: regenerate brand icons"

(Stage explicit paths rather than git add -A — the generator only writes to those three directories, and an unrelated working-tree change shouldn't accidentally land in a "regenerate icons" commit.)

Determinism

Output is byte-stable for a given lockfile. The same SVGs in produce the same PNG/ICO/ICNS bytes out, every time, on every OS — Sharp uses resvg internally and writes deterministic PNGs, png-to-ico and png2icons don't embed timestamps.

Caveat: byte-stability is not guaranteed across version bumps of the three encoder deps. After a Renovate / dependabot PR upgrades any of them, run pnpm gen-icons once and commit the resulting diff inside the same PR. That follow-up commit isn't an artwork change — it's encoder output drift, and gating it inside the dep PR keeps the artwork-change git history clean.

Source SVGs

Brand source Drives
assets/brand/app-icon.svg Every full app icon, all favicons, PWA
assets/brand/mark.svg Win/Linux tray, in-app logo, PWA maskable
assets/brand/mark-mono-dark.svg macOS menu-bar template (alpha + black)

Artworks-Backspace/ is the design archive — never read by this script.