Rename the darker tone to AMOLED; file icons are always colored

- Tone: the "darker" option is labelled "AMOLED" in all 7 locales — it is
  the true-black AMOLED palette. The persisted value stays "darker", so no
  settings migration.
- File icons: the Plain/Multi option is gone and the per-category glyphs +
  colors are always on. Removed the iconColors setting (type, default,
  signal, setter, options row, strings) and the plain branch in
  file-icons.ts. A stale "iconColors" key in settings.json is carried
  harmlessly and dropped on the next save.

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

src/shared/i18n/de.ts

@@ -34,7 +34,7 @@ export const de = {
 		language: "Sprache",
 		system: "System",
 		theme: { label: "Design", system: "System", light: "Hell", dark: "Dunkel" },
-		tone: { label: "Ton", dark: "Dunkel", darker: "Dunkler" },
+		tone: { label: "Ton", dark: "Dunkel", darker: "AMOLED" },
 		accent: { label: "Akzent" },
 		accentNames: {
 			graphite: "Graphit",
@@ -46,7 +46,6 @@ export const de = {
 			green: "Grün",
 			teal: "Petrol",
 		},
-		fileIcons: { label: "Datei-Symbole", plain: "Einfach", multi: "Farbig" },
 		interface: { label: "Oberfläche", smaller: "Kleiner", larger: "Größer", reset: "Auf 100% zurücksetzen" },
 		speedUnit: { label: "Geschwindigkeitseinheit" },
 		transfers: { label: "Übertragungen", single: "Einzeln", multi: "Mehrere" },

src/shared/i18n/en.ts

@@ -38,7 +38,7 @@ export const en = {
 		language: "Language",
 		system: "System",
 		theme: { label: "Theme", system: "System", light: "Light", dark: "Dark" },
-		tone: { label: "Tone", dark: "Dark", darker: "Darker" },
+		tone: { label: "Tone", dark: "Dark", darker: "AMOLED" },
 		accent: { label: "Accent" },
 		accentNames: {
 			graphite: "Graphite",
@@ -50,7 +50,6 @@ export const en = {
 			green: "Green",
 			teal: "Teal",
 		},
-		fileIcons: { label: "File icons", plain: "Plain", multi: "Multi" },
 		interface: { label: "Interface", smaller: "Smaller", larger: "Larger", reset: "Reset to 100%" },
 		speedUnit: { label: "Speed unit" },
 		transfers: { label: "Transfers", single: "Single", multi: "Multi" },

src/shared/i18n/es.ts

@@ -34,7 +34,7 @@ export const es = {
 		language: "Idioma",
 		system: "Sistema",
 		theme: { label: "Tema", system: "Sistema", light: "Claro", dark: "Oscuro" },
-		tone: { label: "Tono", dark: "Oscuro", darker: "Más oscuro" },
+		tone: { label: "Tono", dark: "Oscuro", darker: "AMOLED" },
 		accent: { label: "Acento" },
 		accentNames: {
 			graphite: "Grafito",
@@ -46,7 +46,6 @@ export const es = {
 			green: "Verde",
 			teal: "Turquesa",
 		},
-		fileIcons: { label: "Iconos", plain: "Simple", multi: "Color" },
 		interface: { label: "Interfaz", smaller: "Más pequeña", larger: "Más grande", reset: "Restablecer al 100%" },
 		speedUnit: { label: "Unidad de velocidad" },
 		transfers: { label: "Transferencias", single: "Una", multi: "Varias" },

src/shared/i18n/eu.ts

@@ -36,7 +36,7 @@ export const eu = {
 		language: "Hizkuntza",
 		system: "Sistema",
 		theme: { label: "Gaia", system: "Sistema", light: "Argia", dark: "Iluna" },
-		tone: { label: "Tonua", dark: "Iluna", darker: "Ilunagoa" },
+		tone: { label: "Tonua", dark: "Iluna", darker: "AMOLED" },
 		accent: { label: "Azentua" },
 		accentNames: {
 			graphite: "Grafitoa",
@@ -48,7 +48,6 @@ export const eu = {
 			green: "Berdea",
 			teal: "Turkesa",
 		},
-		fileIcons: { label: "Fitxategi-ikonoak", plain: "Soila", multi: "Koloretsua" },
 		interface: { label: "Interfazea", smaller: "Txikiagoa", larger: "Handiagoa", reset: "Berrezarri %100era" },
 		speedUnit: { label: "Abiadura-unitatea" },
 		transfers: { label: "Transferentziak", single: "Banaka", multi: "Anitz" },

src/shared/i18n/fr.ts

@@ -34,7 +34,7 @@ export const fr = {
 		language: "Langue",
 		system: "Système",
 		theme: { label: "Thème", system: "Système", light: "Clair", dark: "Sombre" },
-		tone: { label: "Ton", dark: "Sombre", darker: "Plus sombre" },
+		tone: { label: "Ton", dark: "Sombre", darker: "AMOLED" },
 		accent: { label: "Accent" },
 		accentNames: {
 			graphite: "Graphite",
@@ -46,7 +46,6 @@ export const fr = {
 			green: "Vert",
 			teal: "Sarcelle",
 		},
-		fileIcons: { label: "Icônes", plain: "Simple", multi: "Couleur" },
 		interface: { label: "Interface", smaller: "Plus petite", larger: "Plus grande", reset: "Réinitialiser à 100%" },
 		speedUnit: { label: "Unité de vitesse" },
 		transfers: { label: "Transferts", single: "Un", multi: "Plusieurs" },

src/shared/i18n/ja.ts

@@ -35,7 +35,7 @@ export const ja = {
 		language: "言語",
 		system: "システム",
 		theme: { label: "テーマ", system: "システム", light: "ライト", dark: "ダーク" },
-		tone: { label: "トーン", dark: "ダーク", darker: "より暗く" },
+		tone: { label: "トーン", dark: "ダーク", darker: "AMOLED" },
 		accent: { label: "アクセント" },
 		accentNames: {
 			graphite: "グラファイト",
@@ -47,7 +47,6 @@ export const ja = {
 			green: "グリーン",
 			teal: "ティール",
 		},
-		fileIcons: { label: "ファイルアイコン", plain: "シンプル", multi: "カラー" },
 		interface: { label: "インターフェース", smaller: "縮小", larger: "拡大", reset: "100%に戻す" },
 		speedUnit: { label: "速度の単位" },
 		transfers: { label: "転送", single: "1件ずつ", multi: "複数" },

src/shared/i18n/zh.ts

@@ -35,7 +35,7 @@ export const zh = {
 		language: "语言",
 		system: "系统",
 		theme: { label: "主题", system: "系统", light: "浅色", dark: "深色" },
-		tone: { label: "色调", dark: "深色", darker: "更深" },
+		tone: { label: "色调", dark: "深色", darker: "AMOLED" },
 		accent: { label: "强调色" },
 		accentNames: {
 			graphite: "石墨",
@@ -47,7 +47,6 @@ export const zh = {
 			green: "绿色",
 			teal: "青色",
 		},
-		fileIcons: { label: "文件图标", plain: "简约", multi: "彩色" },
 		interface: { label: "界面", smaller: "缩小", larger: "放大", reset: "重置为100%" },
 		speedUnit: { label: "速度单位" },
 		transfers: { label: "传输", single: "单个", multi: "多个" },

src/shared/types.ts

@@ -83,8 +83,6 @@ export interface AppSettings {
 	darkTone: "dark" | "darker";
 	/** Accent tone for chrome and selection tint; graphite = neutral zinc. */
 	accent: AccentTone;
-	/** File-list icons: plain neutral glyphs, or per-category glyphs and colors. */
-	iconColors: "plain" | "multi";
 	/** Visible optional file-list columns (both panels; Name always shows). */
 	columns: ColumnKey[];
 	speedUnit: "MBps" | "Mbps";
@@ -116,7 +114,6 @@ export const DEFAULT_SETTINGS: AppSettings = {
 	theme: "system",
 	darkTone: "dark",
 	accent: "blue",
-	iconColors: "multi",
 	columns: ["size", "mtime"],
 	speedUnit: "MBps",
 	uiScale: 1,