feat(tui): add Ctrl+1‑5 panel focus shortcuts and UI hints

- Implement `focus_panel` to programmatically switch between panels with validation.
- Add key bindings for `Ctrl+1`‑`Ctrl+5` to focus Files, Chat, Code, Thinking, and Input panels respectively.
- Update pane headers to display focus shortcuts alongside panel labels.
- Extend UI hint strings across panels to include the new focus shortcuts.
- Refactor highlight style handling and introduce a dedicated `highlight_style`.
- Adjust default theme colors to use explicit RGB values for better consistency.

crates/owlen-core/src/theme.rs

@@ -532,52 +532,52 @@ fn default_dark() -> Theme {
         name: "default_dark".to_string(),
         text: Color::White,
         background: Color::Black,
-        focused_panel_border: Color::LightMagenta,
+        focused_panel_border: Color::Rgb(216, 160, 255),
-        unfocused_panel_border: Color::Rgb(95, 20, 135),
+        unfocused_panel_border: Color::Rgb(137, 82, 204),
-        focus_beacon_fg: Theme::default_focus_beacon_fg(),
+        focus_beacon_fg: Color::Rgb(248, 229, 255),
-        focus_beacon_bg: Theme::default_focus_beacon_bg(),
+        focus_beacon_bg: Color::Rgb(38, 10, 58),
-        unfocused_beacon_fg: Theme::default_unfocused_beacon_fg(),
+        unfocused_beacon_fg: Color::Rgb(130, 130, 130),
         pane_header_active: Theme::default_pane_header_active(),
-        pane_header_inactive: Theme::default_pane_header_inactive(),
+        pane_header_inactive: Color::Rgb(210, 210, 210),
-        pane_hint_text: Theme::default_pane_hint_text(),
+        pane_hint_text: Color::Rgb(210, 210, 210),
         user_message_role: Color::LightBlue,
         assistant_message_role: Color::Yellow,
-        tool_output: Color::Gray,
+        tool_output: Color::Rgb(200, 200, 200),
-        thinking_panel_title: Color::LightMagenta,
+        thinking_panel_title: Color::Rgb(234, 182, 255),
-        command_bar_background: Color::Black,
+        command_bar_background: Color::Rgb(10, 10, 10),
-        status_background: Color::Black,
+        status_background: Color::Rgb(12, 12, 12),
-        mode_normal: Color::LightBlue,
+        mode_normal: Color::Rgb(117, 200, 255),
-        mode_editing: Color::LightGreen,
+        mode_editing: Color::Rgb(144, 242, 170),
-        mode_model_selection: Color::LightYellow,
+        mode_model_selection: Color::Rgb(255, 226, 140),
-        mode_provider_selection: Color::LightCyan,
+        mode_provider_selection: Color::Rgb(164, 235, 255),
-        mode_help: Color::LightMagenta,
+        mode_help: Color::Rgb(234, 182, 255),
-        mode_visual: Color::Magenta,
+        mode_visual: Color::Rgb(255, 170, 255),
-        mode_command: Color::Yellow,
+        mode_command: Color::Rgb(255, 220, 120),
-        selection_bg: Color::LightBlue,
+        selection_bg: Color::Rgb(56, 140, 240),
         selection_fg: Color::Black,
-        cursor: Color::Magenta,
+        cursor: Color::Rgb(255, 196, 255),
         code_block_background: Color::Rgb(25, 25, 25),
-        code_block_border: Color::LightMagenta,
+        code_block_border: Color::Rgb(216, 160, 255),
         code_block_text: Color::White,
-        code_block_keyword: Color::Yellow,
+        code_block_keyword: Color::Rgb(255, 220, 120),
-        code_block_string: Color::LightGreen,
+        code_block_string: Color::Rgb(144, 242, 170),
-        code_block_comment: Color::Gray,
+        code_block_comment: Color::Rgb(170, 170, 170),
-        placeholder: Color::DarkGray,
+        placeholder: Color::Rgb(180, 180, 180),
         error: Color::Red,
-        info: Color::LightGreen,
+        info: Color::Rgb(144, 242, 170),
-        agent_thought: Color::LightBlue,
+        agent_thought: Color::Rgb(117, 200, 255),
-        agent_action: Color::Yellow,
+        agent_action: Color::Rgb(255, 220, 120),
-        agent_action_input: Color::LightCyan,
+        agent_action_input: Color::Rgb(164, 235, 255),
-        agent_observation: Color::LightGreen,
+        agent_observation: Color::Rgb(144, 242, 170),
-        agent_final_answer: Color::Magenta,
+        agent_final_answer: Color::Rgb(255, 170, 255),
         agent_badge_running_fg: Color::Black,
         agent_badge_running_bg: Color::Yellow,
         agent_badge_idle_fg: Color::Black,
         agent_badge_idle_bg: Color::Cyan,
         operating_chat_fg: Color::Black,
-        operating_chat_bg: Color::Blue,
+        operating_chat_bg: Color::Rgb(117, 200, 255),
         operating_code_fg: Color::Black,
-        operating_code_bg: Color::Magenta,
+        operating_code_bg: Color::Rgb(255, 170, 255),
     }
 }
 

crates/owlen-tui/src/chat_app.rs

@@ -2604,6 +2604,39 @@ impl ChatApp {
         self.focused_panel = order[prev_index];
     }
 
+    pub fn focus_panel(&mut self, target: FocusedPanel) -> bool {
+        match target {
+            FocusedPanel::Files => {
+                if self.file_panel_collapsed {
+                    self.expand_file_panel();
+                    if self.file_panel_collapsed {
+                        return false;
+                    }
+                }
+            }
+            FocusedPanel::Code => {
+                if !self.should_show_code_view() {
+                    return false;
+                }
+            }
+            FocusedPanel::Thinking => {
+                if self.current_thinking.is_none() && self.agent_actions.is_none() {
+                    return false;
+                }
+            }
+            FocusedPanel::Chat | FocusedPanel::Input => {}
+        }
+
+        let order = self.focus_sequence();
+        if !order.contains(&target) {
+            return false;
+        }
+
+        self.focused_panel = target;
+        self.ensure_focus_valid();
+        true
+    }
+
     /// Sync textarea content to input buffer
     fn sync_textarea_to_buffer(&mut self) {
         let text = self.textarea.lines().join("\n");
@@ -5007,6 +5040,65 @@ impl ChatApp {
                                 };
                                 self.status = format!("Focus: {}", panel_name);
                             }
+                            (KeyCode::Char('1'), modifiers)
+                                if modifiers.contains(KeyModifiers::CONTROL)
+                                    || modifiers.contains(KeyModifiers::ALT) =>
+                            {
+                                if self.focus_panel(FocusedPanel::Files) {
+                                    self.status = "Focus: Files (Ctrl+1)".to_string();
+                                    self.error = None;
+                                } else if self.is_code_mode() {
+                                    self.status = "Files panel is collapsed — use :files to reopen"
+                                        .to_string();
+                                }
+                                return Ok(AppState::Running);
+                            }
+                            (KeyCode::Char('2'), modifiers)
+                                if modifiers.contains(KeyModifiers::CONTROL)
+                                    || modifiers.contains(KeyModifiers::ALT) =>
+                            {
+                                if self.focus_panel(FocusedPanel::Chat) {
+                                    self.status = "Focus: Chat (Ctrl+2)".to_string();
+                                    self.error = None;
+                                }
+                                return Ok(AppState::Running);
+                            }
+                            (KeyCode::Char('3'), modifiers)
+                                if modifiers.contains(KeyModifiers::CONTROL)
+                                    || modifiers.contains(KeyModifiers::ALT) =>
+                            {
+                                if self.focus_panel(FocusedPanel::Code) {
+                                    self.status = "Focus: Code (Ctrl+3)".to_string();
+                                    self.error = None;
+                                } else {
+                                    self.status =
+                                        "Open a file to focus the code workspace".to_string();
+                                }
+                                return Ok(AppState::Running);
+                            }
+                            (KeyCode::Char('4'), modifiers)
+                                if modifiers.contains(KeyModifiers::CONTROL)
+                                    || modifiers.contains(KeyModifiers::ALT) =>
+                            {
+                                if self.focus_panel(FocusedPanel::Thinking) {
+                                    self.status = "Focus: Thinking (Ctrl+4)".to_string();
+                                    self.error = None;
+                                } else {
+                                    self.status = "No reasoning panel to focus yet".to_string();
+                                }
+                                return Ok(AppState::Running);
+                            }
+                            (KeyCode::Char('5'), modifiers)
+                                if modifiers.contains(KeyModifiers::CONTROL)
+                                    || modifiers.contains(KeyModifiers::ALT) =>
+                            {
+                                if self.focus_panel(FocusedPanel::Input) {
+                                    self.status =
+                                        "Focus: Input (Ctrl+5) — press i to edit".to_string();
+                                    self.error = None;
+                                }
+                                return Ok(AppState::Running);
+                            }
                             (KeyCode::Char('m'), KeyModifiers::NONE) => {
                                 if let Err(err) = self.show_model_picker().await {
                                     self.error = Some(err.to_string());

crates/owlen-tui/src/ui.rs

@@ -597,7 +597,7 @@ fn render_file_tree(frame: &mut Frame<'_>, area: Rect, app: &mut ChatApp) {
     }
 
     title_spans.push(Span::styled(
-        "  ↩ open · o split↓ · O split→ · t tab · y abs · Y rel · A dir · r ren · m move · d del · . $EDITOR · gh hidden · / fuzzy search",
+        "  ↩ open · Ctrl+1 focus · o split↓ · O split→ · t tab · y abs · Y rel · A dir · r ren · m move · d del · . $EDITOR · gh hidden · / fuzzy search",
         panel_hint_style(has_focus, &theme),
     ));
 
@@ -1453,7 +1453,7 @@ fn render_messages(frame: &mut Frame<'_>, area: Rect, app: &mut ChatApp) {
     let mut title_spans = panel_title_spans("Chat", true, has_focus, &theme);
     title_spans.push(Span::raw("  "));
     title_spans.push(Span::styled(
-        "PgUp/PgDn scroll · g/G jump · s save",
+        "PgUp/PgDn scroll · g/G jump · s save · Ctrl+2 focus",
         panel_hint_style(has_focus, &theme),
     ));
 
@@ -1568,7 +1568,7 @@ fn render_thinking(frame: &mut Frame<'_>, area: Rect, app: &mut ChatApp) {
         let mut title_spans = panel_title_spans("💭 Thinking", true, has_focus, &theme);
         title_spans.push(Span::raw("  "));
         title_spans.push(Span::styled(
-            "Esc close",
+            "Esc close · Ctrl+4 focus",
             panel_hint_style(has_focus, &theme),
         ));
 
@@ -1774,7 +1774,7 @@ fn render_agent_actions(frame: &mut Frame<'_>, area: Rect, app: &mut ChatApp) {
         let mut title_spans = panel_title_spans("🤖 Agent Actions", true, has_focus, &theme);
         title_spans.push(Span::raw("  "));
         title_spans.push(Span::styled(
-            "Pause ▸ p · Resume ▸ r",
+            "Pause ▸ p · Resume ▸ r · Ctrl+4 focus",
             panel_hint_style(has_focus, &theme),
         ));
 
@@ -1800,16 +1800,22 @@ fn render_input(frame: &mut Frame<'_>, area: Rect, app: &mut ChatApp) {
     let (label, hint) = match app.mode() {
         InputMode::Editing => (
             "Input",
-            Some("Enter send · Shift+Enter newline · Esc normal"),
+            Some("Enter send · Shift+Enter newline · Esc normal · Ctrl+5 focus"),
         ),
-        InputMode::Visual => ("Visual Select", Some("y yank · d cut · Esc cancel")),
+        InputMode::Visual => (
-        InputMode::Command => ("Command", Some("Enter run · Esc cancel")),
+            "Visual Select",
+            Some("y yank · d cut · Esc cancel · Ctrl+5 focus"),
+        ),
+        InputMode::Command => ("Command", Some("Enter run · Esc cancel · Ctrl+5 focus")),
         InputMode::RepoSearch => (
             "Repo Search",
-            Some("Enter run · Alt+Enter scratch · Esc close"),
+            Some("Enter run · Alt+Enter scratch · Esc close · Ctrl+5 focus"),
         ),
-        InputMode::SymbolSearch => ("Symbol Search", Some("Type @name · Esc close")),
+        InputMode::SymbolSearch => (
-        _ => ("Input", Some("Press i to start typing")),
+            "Symbol Search",
+            Some("Type @name · Esc close · Ctrl+5 focus"),
+        ),
+        _ => ("Input", Some("Press i to start typing · Ctrl+5 focus")),
     };
 
     let is_active = matches!(
@@ -2019,12 +2025,12 @@ fn render_status(frame: &mut Frame<'_>, area: Rect, app: &ChatApp) {
         owlen_core::mode::Mode::Code => ("CODE", theme.operating_code_fg, theme.operating_code_bg),
     };
 
-    let focus_label = match app.focused_panel() {
+    let (focus_label, focus_hint) = match app.focused_panel() {
-        FocusedPanel::Files => "FILES",
+        FocusedPanel::Files => ("FILES", "Ctrl+1"),
-        FocusedPanel::Chat => "CHAT",
+        FocusedPanel::Chat => ("CHAT", "Ctrl+2"),
-        FocusedPanel::Thinking => "THINK",
+        FocusedPanel::Thinking => ("THINK", "Ctrl+4"),
-        FocusedPanel::Input => "INPUT",
+        FocusedPanel::Input => ("INPUT", "Ctrl+5"),
-        FocusedPanel::Code => "CODE",
+        FocusedPanel::Code => ("CODE", "Ctrl+3"),
     };
 
     let mut left_spans = vec![
@@ -2043,7 +2049,7 @@ fn render_status(frame: &mut Frame<'_>, area: Rect, app: &ChatApp) {
                 .add_modifier(Modifier::BOLD),
         ),
         Span::styled(
-            format!(" │ {}", focus_label),
+            format!(" │ {} · {}", focus_label, focus_hint),
             Style::default()
                 .fg(theme.pane_header_active)
                 .add_modifier(Modifier::BOLD | Modifier::ITALIC),
@@ -2440,7 +2446,7 @@ fn render_code_pane(
     if is_active {
         title_spans.push(Span::raw("  "));
         title_spans.push(Span::styled(
-            "Ctrl+W split · :w save",
+            "Ctrl+W split · :w save · Ctrl+3 focus",
             panel_hint_style(has_focus && is_active, theme),
         ));
     }
@@ -2605,6 +2611,11 @@ fn render_provider_selector(frame: &mut Frame<'_>, app: &ChatApp) {
         })
         .collect();
 
+    let highlight_style = Style::default()
+        .bg(theme.selection_bg)
+        .fg(theme.selection_fg)
+        .add_modifier(Modifier::BOLD);
+
     let list = List::new(items)
         .block(
             Block::default()
@@ -2618,11 +2629,7 @@ fn render_provider_selector(frame: &mut Frame<'_>, app: &ChatApp) {
                 .border_style(Style::default().fg(theme.unfocused_panel_border))
                 .style(Style::default().bg(theme.background).fg(theme.text)),
         )
-        .highlight_style(
+        .highlight_style(highlight_style)
-            Style::default()
-                .fg(theme.focused_panel_border)
-                .add_modifier(Modifier::BOLD),
-        )
         .highlight_symbol("▶ ");
 
     let mut state = ListState::default();