WIP count feature

src/app/update/file.rs

@@ -744,6 +744,9 @@ impl OpenCADStudio {
             block_mru_list: self.block_mru_list,
             block_redefine_mode: self.block_redefine_mode,
             block_navigate: self.block_navigate.clone(),
+            count_color: self.count_palette.color,
+            count_error_color: self.count_palette.error_color,
+            count_service: self.count_palette.service,
         }
     }
 
@@ -874,6 +877,9 @@ impl OpenCADStudio {
         self.block_mru_list = s.block_mru_list.min(100);
         self.block_redefine_mode = s.block_redefine_mode.min(2);
         self.block_navigate = s.block_navigate.clone();
+        self.count_palette.color = s.count_color;
+        self.count_palette.error_color = s.count_error_color;
+        self.count_palette.service = s.count_service;
         self.block_palette.recent = s.block_recent.clone();
         self.block_palette.favorites = s.block_favorites.clone();
         self.block_palette.libraries = s.block_libraries.clone();
@@ -5520,7 +5526,7 @@ impl OpenCADStudio {
     /// Current visible rectangle in the active space. The result is deliberately
     /// not clamped to the paper sheet: Display and Window may include the grey
     /// canvas outside the sheet, matching Model-space plotting.
-    fn display_plot_window(&self) -> Option<(f64, f64, f64, f64)> {
+    pub(in crate::app) fn display_plot_window(&self) -> Option<(f64, f64, f64, f64)> {
         let scene = &self.tabs[self.active_tab].scene;
         let (canvas_w, canvas_h) = scene.selection.borrow().vp_size;
         let viewport = if scene.current_layout == "Model" {