Auto-translate: changing either language only called saveUi(), so the
pane below kept showing the previous language's result with nothing to
say it was stale — you had to notice and press Translate. Both selects
now re-run the translation, guarded on empty input and on
source === target (which would only echo the input back).
Text size: the panes were 13.5px, small for reading a paragraph in a
language you don't know well, which is the entire job. Base is now
15px, driven by a --tsize custom property so both panes stay matched.
Zoom: −/+ either side of a percentage in the header, 70–220% in steps
of 10, clamped with the buttons disabling at each end. Click the
percentage to reset. Ctrl/Cmd with +, - or 0 does the same from either
pane. Persists per-machine alongside the language choice.
Icon: a globe with an A tile and a 文 tile, replacing the 🌐 emoji that
was indistinguishable from every other globe in the dock. Drawn against
the 16px and 18px rasterizations rather than at a comfortable size —
the first pass used a font glyph for 文 and it turned to grey mush at
16px, so the strokes are hand-drawn paths thick enough to survive. Also
drops the hardcoded icon in registerSidebarPanel, which would otherwise
shadow the manifest's mark.
Verified in a harness with a stubbed host API: language change fires
exactly one request, the two guards fire none, zoom clamps and persists,
and the layout holds at sidebar width.
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