diff --git a/source/blender/editors/interface/interface_icons.cc b/source/blender/editors/interface/interface_icons.cc
index f9e56b1ab67..35ea5431a02 100644
--- a/source/blender/editors/interface/interface_icons.cc
+++ b/source/blender/editors/interface/interface_icons.cc
@@ -1468,7 +1468,11 @@ static void icon_draw_size(float x,
   const float fdraw_size = float(draw_size);
 
   Icon *icon = BKE_icon_get(icon_id);
-  alpha *= btheme->tui.icon_alpha;
+
+  if (icon->obj_type != ICON_DATA_STUDIOLIGHT) {
+    /* Icon Alpha should not apply to Mapcaps/Studio lighting. #80356. */
+    alpha *= btheme->tui.icon_alpha;
+  }
 
   if (icon == nullptr) {
     if (G.debug & G_DEBUG) {