fix: updated current line indicator for issue #32

lib/bds/tui.ex

@@ -1474,7 +1474,10 @@ defmodule BDS.TUI do
        language: :markdown_macros,
        block: %Block{title: body_title, borders: [:all]},
        cursor_style: if(focused?, do: %Style{bg: :cyan}, else: %Style{}),
-       line_highlight_style: if(focused?, do: %Style{bg: :dark_gray}, else: %Style{})
+       # base16-ocean's lighter-background grey — a fixed RGB so the
+       # current-line marker stays dark (and readable) in any terminal
+       # palette, unlike the named :dark_gray colour.
+       line_highlight_style: if(focused?, do: %Style{bg: {:rgb, 52, 61, 70}}, else: %Style{})
      }, body_rect}
   end