i18n: the Swatches panel shows the default swatches' names in Japanese

The list showed [None], [Registration] and the default swatches' names in
English. Names the app gives (the default swatches and colour groups) now
show in the UI's language where it has a `swatch` row for them; documents
keep the names as they are, and a name the user gave shows as written.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

crates/ui-egui/src/i18n/ja.tsv

@@ -3536,6 +3536,52 @@ theme	Appearance	外観
 # names and values in backticks or code (`colorModel rgb`, `document.export`) stay as they are.
 # Japanese: no final 。 (these are status lines, and reasons that follow a colon), unless the English ends
 # with a period; a space between Japanese text and an adjacent Latin word, number or {placeholder}.
+# Swatches panel: the default swatches' names (shown in the UI language; documents keep them)
+swatch	[None]	[なし]
+swatch	[Registration]	[レジストレーション]
+swatch	White	ホワイト
+swatch	Black	ブラック
+swatch	Red	レッド
+swatch	Orange Red	オレンジレッド
+swatch	Orange	オレンジ
+swatch	Amber	アンバー
+swatch	Yellow	イエロー
+swatch	Yellow Green	イエローグリーン
+swatch	Lime	ライム
+swatch	Green	グリーン
+swatch	Emerald	エメラルド
+swatch	Teal	ティール
+swatch	Aqua	アクア
+swatch	Cyan Green	シアングリーン
+swatch	Cyan	シアン
+swatch	Azure	アジュール
+swatch	Blue	ブルー
+swatch	Indigo	インディゴ
+swatch	Violet	バイオレット
+swatch	Purple	パープル
+swatch	Magenta	マゼンタ
+swatch	Rose	ローズ
+swatch	Pink	ピンク
+swatch	Brown	ブラウン
+swatch	Tan	タン
+swatch	Coffee	コーヒー
+swatch	Chocolate	チョコレート
+swatch	Sand	サンド
+swatch	Copper	カッパー
+swatch	Rust	ラスト
+swatch	Walnut	ウォルナット
+swatch	Espresso	エスプレッソ
+swatch	White, Black	ホワイト、ブラック
+swatch	Radial White, Black	円形 ホワイト、ブラック
+swatch	Sunset	サンセット
+swatch	Ocean	オーシャン
+swatch	Grays	グレー
+swatch	Brights	ビビッド
+swatch	Bright Red	ビビッドレッド
+swatch	Bright Yellow	ビビッドイエロー
+swatch	Bright Green	ビビッドグリーン
+swatch	Bright Blue	ビビッドブルー
+swatch	Bright Violet	ビビッドバイオレット
 @msg	Reset {_1}	{_1} をリセットしました
 @msg	Saving	保存中
 @msg	Saving {_1}	{_1} を保存中

crates/ui-egui/src/i18n/mod.rs

@@ -472,6 +472,12 @@ pub fn tr_ctx<'a>(lang: Lang, context: &str, s: &'a str) -> &'a str {
     lang.catalog().contextual(context, s).unwrap_or_else(|| tr(lang, s))
 }
 
+/// A name the app gives something (a default swatch's), translated where the current language has
+/// a `context` row for it; any other name (one the user gave) comes back as it is.
+pub fn t_name<'a>(context: &str, name: &'a str) -> &'a str {
+    current().catalog().contextual(context, name).unwrap_or(name)
+}
+
 /// A string keyed by its command id, falling back to the translation of the English `label`.
 pub fn tr_id<'a>(lang: Lang, id: &str, label: &'a str) -> &'a str {
     lang.catalog().id(id).unwrap_or_else(|| tr(lang, label))

crates/ui-egui/src/i18n/tests.rs

@@ -1469,3 +1469,20 @@ fn polish_reads_as_polish() {
     let nested = "command `object.group` is not available right now: nothing selected";
     assert_eq!(message(pl(), nested), "polecenie `object.group` jest teraz niedostępne: nic nie zaznaczono");
 }
+
+/// Japanese names every default swatch and colour group the Swatches panel shows (the greys'
+/// `K=` values read the same in any language); a name the user gave a swatch has no row.
+#[test]
+fn japanese_names_the_default_swatches() {
+    let ja = Lang::from_code("ja").unwrap().catalog();
+    let (swatches, groups) = vectorcraft_color::default_swatches(vectorcraft_color::cms::Model::Rgb);
+    let names = swatches
+        .iter()
+        .map(|s| s.name.clone())
+        .chain(groups.iter().flat_map(|g| std::iter::once(g.name.clone()).chain(g.swatches.iter().map(|s| s.name.clone()))))
+        .chain([vectorcraft_color::swatch::REGISTRATION.to_string()]);
+    let missing: Vec<String> = names.filter(|n| !n.starts_with("K=") && ja.contextual("swatch", n).is_none()).collect();
+    assert!(missing.is_empty(), "{missing:?}");
+    assert_eq!(ja.contextual("swatch", "White"), Some("ホワイト"));
+    assert_eq!(ja.contextual("swatch", "My Red"), None);
+}

crates/ui-egui/src/panels/swatches.rs

@@ -429,12 +429,14 @@ fn tile_input(ui: &Ui, resp: Response, e: &Entry, items: &[Entry], sel: &[String
         egui::DragAndDrop::set_payload(ui.ctx(), drag_of(e, names));
     }
     tile_drop(ui, &resp, e, list, ev);
+    // The default swatches' names show in the UI's language; the document keeps them as they are.
+    let shown = crate::i18n::t_name("swatch", name);
     let resp = match e {
-        Entry::Folder(n) => resp.on_hover_text(crate::i18n::fmt(tl!("Color Group: {name}"), &[("name", n)])),
+        Entry::Folder(_) => resp.on_hover_text(crate::i18n::fmt(tl!("Color Group: {name}"), &[("name", shown)])),
         Entry::Swatch { paint, global, spot, .. } if list => resp.on_hover_ui(|ui| {
-            ui.label(format!("{name} ({})", describe(paint, *global, *spot)));
+            ui.label(format!("{shown} ({})", describe(paint, *global, *spot)));
         }),
-        _ => resp.on_hover_text(name),
+        _ => resp.on_hover_text(shown),
     };
     if resp.clicked() {
         ev.clicked = Some((e.clone(), ui.input(|i| i.modifiers)));
@@ -682,7 +684,7 @@ fn body(app: &mut VectorcraftApp, ui: &mut Ui, salt: &'static str) {
                         }
                         Entry::Folder(_) => draw_folder(ui, chip),
                     }
-                    list_row_name(ui, r, chip, name);
+                    list_row_name(ui, r, chip, crate::i18n::t_name("swatch", name));
                     tile_input(ui, resp, e, &items, sel, true, &mut ev);
                 }
             } else {