Adds a Spanish catalog (crates/ui-egui/src/i18n/es.tsv) covering the whole
interface like Japanese and Traditional Chinese: every menu string, every
tl! literal, the hint-bar fragments, plurals and the runtime strings the
other complete catalogs carry. It is written from the meaning of the
English labels in neutral, international Spanish (Latin American usage)
with the vocabulary users of vector illustration software know (Mesa de
trabajo, Muestras, Trazo, Relleno, Trazado, Pluma, Selección directa,
Buscatrazos, Motivo, Preajuste); no other application's localisation was
copied. Like Japanese it keeps the product, OpenType, the built-in
workspace names and the perspective grid preset names in English.
The language is registered with complete_menus (so the completeness
tests enforce it) and the one/other plural rule; every es-* system locale
(es-ES, es-MX, es-AR, es-419 ...) resolves to it.
Tests: es locale tags, Spanish vocabulary and plurals, Spanish letters in
the bundled UI fonts, and a new check that catalogs written with spaces
keep the leading/trailing spaces of joined fragments. ROADMAP, README and
docs/development.md list the language.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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