diff --git a/devel/213_22.md b/devel/213_22.md
new file mode 100644
index 0000000000..39147f327e
--- /dev/null
+++ b/devel/213_22.md
@@ -0,0 +1,9 @@
+# [213_22] Replace focus border with translucent background
+
+Issue: https://github.com/MoganLab/mogan/issues/2759
+
+Replace the cyan border (`#0ff`) used to indicate focused structures (tables, math formulas, etc.) with a translucent background fill, improving visual clarity and reducing distraction.
+
+## Changes
+- `src/Typeset/Env/env_default.cpp`: Changed `FOCUS_COLOR` from `#0ff` (opaque cyan border) to `#0ff1a` (translucent cyan background)
+- `src/Edit/Interface/edit_repaint.cpp`: Changed `draw_rectangles` to `draw_selection` for `foc_rects` rendering under Qt, which uses fill instead of border drawing
diff --git a/src/Edit/Interface/edit_repaint.cpp b/src/Edit/Interface/edit_repaint.cpp
index 797f1248dc..1f2e914fa0 100644
--- a/src/Edit/Interface/edit_repaint.cpp
+++ b/src/Edit/Interface/edit_repaint.cpp
@@ -67,7 +67,11 @@ edit_interface_rep::draw_env (renderer ren) {
     if (!is_nil (foc_rects)) {
       color col= get_env_color (FOCUS_COLOR);
       ren->set_pencil (pencil (col, ren->pixel));
+#ifdef QTTEXMACS
+      ren->draw_selection (foc_rects);
+#else
       ren->draw_rectangles (foc_rects);
+#endif
     }
     if (!is_nil (sem_rects)) {
       if (sem_correct) {
diff --git a/src/Typeset/Env/env_default.cpp b/src/Typeset/Env/env_default.cpp
index 910f1f9f7e..9e70628e7c 100644
--- a/src/Typeset/Env/env_default.cpp
+++ b/src/Typeset/Env/env_default.cpp
@@ -59,7 +59,7 @@ initialize_default_env () {
 
   env (CURSOR_COLOR)         = "#000000";   // cursor color in user interface
   env (MATH_CURSOR_COLOR)    = "#b0f";      // cursor color in math mode
-  env (FOCUS_COLOR)          = "#0ff";      // color of focus rectangles
+  env (FOCUS_COLOR)          = "#0ff1a";    // color of focus background
   env (CONTEXT_COLOR)        = "#00555518"; // color of context rectangles
   env (SELECTION_COLOR)      = "#2d69f033"; // color of selections
   env (TABLE_SELECTION_COLOR)= "#50f3";   // color of selections of table cells