Add an interface-language preference. It defaults to the system's
language on first run (sys-locale, native only) and is switched by hand
from the View tab, next to Dark Mode, or with app.language.english /
app.language.japanese over the control channel. It is saved in ui.json.
Follows the filmcraft house convention: a Language enum and a
table of English-to-Japanese strings with English fallback, so coverage
can grow incrementally. Japanese chrome renders without any bundled
font: the CJK fallback faces already appended to every family cover
kana and kanji.
The ribbon chrome all flows through the small_button/big_button/
toggle_button/split_button/icon_button helpers and menu_items, so
translating there localises the whole ribbon in one place; the language
of the frame is read from egui context data (i18n::current). Command
ids, file names and document text are never translated.
- ui-egui: title bar with QAT, full ribbon (Home/Insert/Draw/Page Layout/Formulas/Data/
Review/View/Automate + Table/Chart Design), formula bar with Name Box, virtualised grid
(frozen panes, overflow, borders, CF data bars/scales/icons, tables, sparklines, filter
buttons, charts/pictures/shapes), in-cell editor with point mode, reference colouring,
autocomplete and argument hints, sheet tabs, status bar, dialogs, control channel
- apps/sheetcraft: desktop app (control server, file dialogs, prefs, drag & drop)
- chart: toolkit-free chart layout/rendering for 25 chart kinds + sparklines + rasteriser
- mcp + sheetcraft-cli: MCP server (headless or bridged) and CLI (info/convert/eval/cat/run/mcp)
- xtask (ci/layers/assets/wasm/version/parity), release workflows, packaging, placeholder icon
- automatic row heights
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
