Text size setting for path bar + file list (Compact/Default/Large)

Segmented row in the options popover; applied via data-text on <html> driving
CSS variables (--list-font / --list-meta-font / --path-font), persisted in
settings.json like theme and speed unit.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

ui/src/app/file-panel/file-panel.html

@@ -144,7 +144,7 @@
     (keydown.escape)="resetPath()"
     (keydown)="$event.stopPropagation()"
     spellcheck="false"
-    class="h-7 min-w-0 flex-1 rounded-md border border-input bg-transparent px-2 font-mono text-xs outline-none focus:ring-2 focus:ring-ring"
+    class="h-7 min-w-0 flex-1 rounded-md border border-input bg-transparent px-2 font-mono text-(length:--path-font) outline-none focus:ring-2 focus:ring-ring"
   />
   <button
     (click)="panel().refresh()"
@@ -187,7 +187,7 @@
       [attr.data-index]="i"
       (click)="rowClick($event, i)"
       (dblclick)="openAt(i)"
-      class="grid h-7 grid-cols-[minmax(0,1fr)_5.5rem_8.5rem] items-center text-[13px]"
+      class="grid h-7 grid-cols-[minmax(0,1fr)_5.5rem_8.5rem] items-center text-(length:--list-font)"
       [class.bg-accent]="i === panel().cursor() && !isSelected(entry)"
       [class.bg-primary/15]="isSelected(entry)"
       [class.ring-1]="i === panel().cursor() && isActive()"
@@ -202,10 +202,10 @@
         />
         <span class="truncate" [class.italic]="entry.type === 'symlink'">{{ entry.name }}</span>
       </div>
-      <span class="px-2 text-right font-mono text-xs tabular-nums text-muted-foreground">
+      <span class="px-2 text-right font-mono text-(length:--list-meta-font) tabular-nums text-muted-foreground">
         {{ entry.type === 'dir' ? '—' : formatSize(entry.size) }}
       </span>
-      <span class="px-2 font-mono text-xs tabular-nums text-muted-foreground">
+      <span class="px-2 font-mono text-(length:--list-meta-font) tabular-nums text-muted-foreground">
         {{ formatDate(entry.mtime) }}
       </span>
     </div>

ui/src/app/settings.service.ts

@@ -6,6 +6,7 @@ import { RpcService } from './rpc.service';
 export class SettingsService {
   readonly theme = signal<AppSettings['theme']>(DEFAULT_SETTINGS.theme);
   readonly speedUnit = signal<AppSettings['speedUnit']>(DEFAULT_SETTINGS.speedUnit);
+  readonly textSize = signal<AppSettings['textSize']>(DEFAULT_SETTINGS.textSize);
 
   private readonly rpc = inject(RpcService);
 
@@ -15,7 +16,9 @@ export class SettingsService {
       if (!res.ok) return;
       this.theme.set(res.settings.theme);
       this.speedUnit.set(res.settings.speedUnit);
+      this.textSize.set(res.settings.textSize);
       this.applyTheme();
+      this.applyTextSize();
     });
   }
 
@@ -30,6 +33,12 @@ export class SettingsService {
     void this.persist();
   }
 
+  setTextSize(size: AppSettings['textSize']): void {
+    this.textSize.set(size);
+    this.applyTextSize();
+    void this.persist();
+  }
+
   private applyTheme(): void {
     const theme = this.theme();
     if (theme === 'system') {
@@ -39,9 +48,24 @@ export class SettingsService {
     }
   }
 
+  private applyTextSize(): void {
+    const size = this.textSize();
+    if (size === 'default') {
+      delete document.documentElement.dataset['text'];
+    } else {
+      document.documentElement.dataset['text'] = size;
+    }
+  }
+
+  protected settings(): AppSettings {
+    return {
+      theme: this.theme(),
+      speedUnit: this.speedUnit(),
+      textSize: this.textSize(),
+    };
+  }
+
   private async persist(): Promise<void> {
-    await this.rpc.request.saveSettings({
-      settings: { theme: this.theme(), speedUnit: this.speedUnit() },
-    });
+    await this.rpc.request.saveSettings({ settings: this.settings() });
   }
 }

ui/src/app/tab-bar/tab-bar.ts

@@ -9,6 +9,7 @@ const SPEED_UNITS = [
   { value: 'MBps', label: 'MB/s' },
   { value: 'Mbps', label: 'Mbps' },
 ] as const;
+const TEXT_SIZES = ['compact', 'default', 'large'] as const;
 
 @Component({
   selector: 'app-tab-bar',
@@ -102,6 +103,23 @@ const SPEED_UNITS = [
             </div>
           </div>
 
+          <div class="mt-2.5 flex items-center justify-between gap-2">
+            <span class="text-xs text-muted-foreground">Text size</span>
+            <div class="flex rounded-md border border-border p-0.5">
+              @for (size of textSizes; track size) {
+                <button
+                  (click)="settings.setTextSize(size)"
+                  class="rounded px-2 py-0.5 text-[11px] capitalize"
+                  [class.bg-accent]="settings.textSize() === size"
+                  [class.text-foreground]="settings.textSize() === size"
+                  [class.text-muted-foreground]="settings.textSize() !== size"
+                >
+                  {{ size }}
+                </button>
+              }
+            </div>
+          </div>
+
           <div class="mt-2.5 flex items-center justify-between gap-2">
             <span class="text-xs text-muted-foreground">Speed unit</span>
             <div class="flex rounded-md border border-border p-0.5">
@@ -130,6 +148,7 @@ export class TabBar {
   readonly isMacChrome = IS_MAC_CHROME;
   readonly themes = THEMES;
   readonly speedUnits = SPEED_UNITS;
+  readonly textSizes = TEXT_SIZES;
 
   close(event: MouseEvent, id: number): void {
     event.stopPropagation();

ui/src/styles.css

@@ -100,6 +100,23 @@
   --radius-lg: var(--radius);
 }
 
+/* Text-size setting for the path bar + file list (data-text set by SettingsService). */
+:root {
+  --list-font: 13px;
+  --list-meta-font: 12px;
+  --path-font: 12px;
+}
+:root[data-text='compact'] {
+  --list-font: 12px;
+  --list-meta-font: 11px;
+  --path-font: 11px;
+}
+:root[data-text='large'] {
+  --list-font: 14px;
+  --list-meta-font: 13px;
+  --path-font: 13px;
+}
+
 html,
 body {
   height: 100%;