Accent tone setting with macOS-style swatches (indigo default)

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

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

@@ -220,7 +220,7 @@
       (dblclick)="openAt(i)"
       (contextmenu)="rowContextMenu($event, i)"
       class="grid h-(--row-h) 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-cursor-tint]="i === panel().cursor() && !isSelected(entry)"
       [class.bg-primary/15]="isSelected(entry)"
       [class.ring-1]="i === panel().cursor() && isActive()"
       [class.ring-inset]="i === panel().cursor() && isActive()"