fix: updated current line indicator for issue #32

test/bds/tui_test.exs

@@ -154,8 +154,10 @@ defmodule BDS.TUITest do
     assert ExRatatui.textarea_cursor(state.editor.textarea) == {0, 5}
 
     cells = screen_cells(state)
-    assert cell_at_text(cells, "first").bg == :dark_gray
-    refute cell_at_text(cells, "second").bg == :dark_gray
+    # A fixed dark grey — readable against the light syntax colours in
+    # any terminal palette (the named :dark_gray is palette-dependent).
+    assert cell_at_text(cells, "first").bg == {:rgb, 52, 61, 70}
+    refute cell_at_text(cells, "second").bg == {:rgb, 52, 61, 70}
   end
 
   test "ctrl+s persists textarea edits", %{post: post} do