fix(tui): replace hardcoded colors with Color::Reset for terminal compatibility (closes #666)

config.example.toml

@@ -196,6 +196,7 @@ alternate_screen = "auto"   # auto | always | never
 mouse_capture = true        # true copies only transcript user/assistant text; false uses raw terminal selection/copy
 terminal_probe_timeout_ms = 500 # optional startup terminal-mode timeout (100-5000ms)
 osc8_links = true            # emit OSC 8 escapes around URLs (Cmd+click in iTerm2/Ghostty/Kitty/WezTerm/Terminal.app 13+); set false for terminals that misrender
+# use_terminal_colors = false  # set true to let your terminal's color scheme take full control
 
 # ─────────────────────────────────────────────────────────────────────────────────
 # Feature Flags

crates/tui/src/config.rs

@@ -343,6 +343,9 @@ pub struct TuiConfig {
     /// label and ignore the escape. Defaults to `true`; set `false` for
     /// terminals that misrender the sequence.
     pub osc8_links: Option<bool>,
+    /// When true, TUI uses Color::Reset everywhere and defers all color decisions
+    /// to the terminal emulator. Useful for terminals with custom color schemes.
+    pub use_terminal_colors: Option<bool>,
 }
 
 /// Notification delivery method (mirrors `tui::notifications::Method`).

crates/tui/src/tui/pager.rs

@@ -385,7 +385,7 @@ impl ModalView for PagerView {
                     Color::DarkGray
                 };
                 let fg = if is_current {
-                    Color::Black
+                    Color::Reset
                 } else {
                     Color::Yellow
                 };

crates/tui/src/tui/widgets/mod.rs

@@ -1363,7 +1363,7 @@ fn apply_detail_target_highlight(
     target_cell: usize,
     line_meta: &[TranscriptLineMeta],
 ) {
-    let highlight_bg = Color::Rgb(18, 29, 39);
+    let highlight_bg = Color::Reset;
     for (idx, line) in lines.iter_mut().enumerate() {
         let line_index = top + idx;
         if let Some(TranscriptLineMeta::CellLine { cell_index, .. }) = line_meta.get(line_index)