feat(desktop): add UI scale setting to appearance settings (salvage #60249) - #60457
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This was referenced Jul 7, 2026
alt-glitch
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This was referenced Jul 28, 2026
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Summary
Adds a "UI Scale" row to the desktop app's Settings > Appearance so the whole interface can be resized without knowing the Ctrl/Cmd zoom shortcuts — an accessibility win for low-vision users.
Salvage of #60249 by @Adolanium onto current main, with his authorship preserved via cherry-pick. Fixes #60248.
Changes
apps/desktop/electron/zoom.cjs: pure zoom helpers (clampZoomLevel, percent ↔ zoom-level conversion, storage key) extracted frommain.cjsso the menu, shortcuts, and settings UI share one clamped scale.apps/desktop/electron/main.cjs:hermes:zoom:get/hermes:zoom:set-percentIPC endpoints (scoped to the asking window) + ahermes:zoom:changedbroadcast fromsetAndPersistZoomLevelso an open settings dialog live-follows keyboard zoom.apps/desktop/electron/preload.cjs+src/global.d.ts:hermesDesktop.zoombridge.apps/desktop/src/store/zoom.ts: nanostore mirroring the current percent.apps/desktop/src/app/settings/appearance-settings.tsx: UI Scale segmented control (90–175% presets) between Theme and Window Translucency. Values between presets (shortcut-only) highlight nothing; the description always shows the exact percent.uiScaleTitle/uiScaleDescin en, ja, zh, zh-hant + types.electron/zoom.test.cjs(7 tests), registered intest:desktop:platforms.apps/desktop/pr-assets/.Validation
node --test electron/zoom.test.cjsnpm run typecheck(apps/desktop)Related PRs
Duplicate cluster addressed by this salvage: #40868 (@liuhao1024, Jun 6), #47034 (@dongseok0, Jun 16), #49902 (@namredips, Jun 21) each proposed an Appearance-settings scale control earlier — credit to all three for identifying the gap; this implementation was chosen as the cleanest (single main-process-owned scale, live shortcut sync, unit tests).
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