Cosmetic rename

Author: Evgeni Raikhel

common/stream-model.cpp

@@ -600,13 +600,13 @@ namespace rs2
 
 #ifdef BUILD_VIEWPORT_GRID_OVERLAY
         label = rsutils::string::from() << textual_icons::grid << "##Grid " << profile.unique_id();
-        if (show_grid)
+        if (show_overlay_grid)
         {
             ImGui::PushStyleColor(ImGuiCol_Text, light_blue);
             ImGui::PushStyleColor(ImGuiCol_TextSelectedBg, light_blue);
             if (ImGui::Button(label.c_str(), { 24, top_bar_height }))
             {
-                show_grid = false;
+                show_overlay_grid = false;
             }
             if (ImGui::IsItemHovered())
                 RsImGui::CustomTooltip("Hide grid overlay");
@@ -616,7 +616,7 @@ namespace rs2
         {
             if (ImGui::Button(label.c_str(), { 24, top_bar_height }))
             {
-                show_grid = true;
+                show_overlay_grid = true;
             }
             if (ImGui::IsItemHovered())
                 RsImGui::CustomTooltip("Show grid overlay");
@@ -2115,7 +2115,7 @@ namespace rs2
             update_ae_roi_rect(stream_rect, g, error_message);
 
 #ifdef BUILD_VIEWPORT_GRID_OVERLAY
-            if (show_grid)
+            if (show_overlay_grid)
                 draw_2d_grid(stream_rect, grid_h_lines, grid_v_lines, grid_line_width,
                              grid_color_r, grid_color_g, grid_color_b);
 #endif

common/stream-model.h

@@ -107,7 +107,7 @@ namespace rs2
         bool show_safety_zones_2d = true;
 
 #ifdef BUILD_VIEWPORT_GRID_OVERLAY
-        bool show_grid     = false;
+        bool show_overlay_grid     = false;
         int  grid_h_lines  = 1;
         int  grid_v_lines  = 1;
         int  grid_line_width = 1;