From e46c73a3179436d393894fa4b1f55df320a3d076 Mon Sep 17 00:00:00 2001
From: RyuJongJin <266630912+RyuJongJin@users.noreply.github.com>
Date: Sat, 10 Oct 2026 04:32:16 +0900
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파란 아이콘 · 옅은 바탕에 더해 3px 밑줄 - 색만으로 알아보기 어려운 사람도 어디인지 알게 (좁은 · 넓은 화면 모두). batch_test.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
---
 lib/ui/app_actions.dart | 18 +++++++++++++++++-
 test/batch_test.dart    |  5 +++++
 2 files changed, 22 insertions(+), 1 deletion(-)

diff --git a/lib/ui/app_actions.dart b/lib/ui/app_actions.dart
index cafc0ac..808cd71 100644
--- a/lib/ui/app_actions.dart
+++ b/lib/ui/app_actions.dart
@@ -240,7 +240,22 @@ class AppNavButtons extends StatelessWidget {
         };
     // 좁은 화면 (폰): 아이콘 아래에 짧은 이름 - 글자 없는 작은 아이콘만 늘어서 무엇인지 몰랐던 것
     final labels = isCompact(context);
-    Widget btn(Widget icon, String tip, VoidCallback? f, {bool here = false, String label = ''}) => labels
+    // 지금 화면 버튼 아래 밑줄 (색만으로는 알아보기 어려운 사람도 어디인지 알게)
+    Widget underline(Widget child, bool here) => !here
+        ? child
+        : Stack(clipBehavior: Clip.none, children: [
+            child,
+            Positioned(
+              left: 10,
+              right: 10,
+              bottom: 0,
+              child: Container(
+                  key: const ValueKey('nav-here-underline'),
+                  height: 3,
+                  decoration: BoxDecoration(color: JjColors.accent, borderRadius: BorderRadius.circular(2))),
+            ),
+          ]);
+    Widget btn0(Widget icon, String tip, VoidCallback? f, {bool here = false, String label = ''}) => labels
         ? Tooltip(
             message: tip,
             child: InkWell(
@@ -284,6 +299,7 @@ class AppNavButtons extends StatelessWidget {
               onPressed: f,
             ),
           );
+    Widget btn(Widget icon, String tip, VoidCallback? f, {bool here = false, String label = ''}) => underline(btn0(icon, tip, f, here: here, label: label), here);
     String short(String id) => switch (id) {
           'mkv' => 'MKV',
           'browser' => tr('브라우저'),
diff --git a/test/batch_test.dart b/test/batch_test.dart
index 2370f1a..b7b73e6 100644
--- a/test/batch_test.dart
+++ b/test/batch_test.dart
@@ -393,6 +393,11 @@ void main() {
     // MKV 화면: 뒤로 · MKV 는 "지금 여기" 라 꺼짐, 다운로드 목록 열기
     expect(btn('뒤로').onPressed, isNull);
     expect(find.byTooltip('MKV 화면 (지금 여기)'), findsOneWidget);
+    // 지금 화면 버튼 아래 밑줄 하나 (그 버튼 아래에)
+    final line = find.byKey(const ValueKey('nav-here-underline'));
+    expect(line, findsOneWidget);
+    final mkv = tester.getRect(find.byTooltip('MKV 화면 (지금 여기)'));
+    expect(tester.getCenter(line).dx, closeTo(mkv.center.dx, 2));
     await tester.tap(find.byTooltip('다운로드 목록'));
     await tester.pumpAndSettle();
     expect(find.textContaining('다운로드 ('), findsOneWidget);