Preferences > Interface size and the `pref.uiScale` command make the whole
interface larger or smaller. Auto keeps the system's display scale; a fixed
size from 75 % to 300 % is absolute (100 % is one screen pixel per point on
every system). The size is held back while the window is too small for it.
Strings are added in en, es and fr; the control protocol, MCP, UI parity and
roadmap docs are updated.
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>