1 files changed, 12 insertions, 0 deletions
diff --git a/src/config.zig b/src/config.zig
index c8a8f8cf..9f18f75e 100644
--- a/src/config.zig
+++ b/src/config.zig
@@ -465,6 +465,18 @@ comptime {
         @compileError("config.gui_tagline_font_percent must be in 1...100");
 }
 
+/// Physical-pixel rule between the global topbar and pane taglines in the
+/// SDL GUI. Their smaller font bands retain body-sized grid rows; without
+/// an explicit join, centering both bands leaves the two unused half-bands
+/// touching and makes a wide strip of the window background show through.
+/// Zero disables the rule and joins the two bands directly.
+pub const gui_topbar_pane_border_px: u8 = 1;
+
+/// Fixed RGB for that rule, or null to follow the active theme's scrollbar
+/// track. The themed default stays quiet across light and dark themes while a
+/// build that wants a deliberate accent can pin one here.
+pub const gui_topbar_pane_border_rgb: ?[3]u8 = null;
+
 /// Touchpad drift guard, in ticks. A two-finger swipe that is MEANT to be
 /// vertical carries a little sideways drift, and the pad faithfully turns that
 /// drift into wheel_left/wheel_right — so a plain scroll slides the view